MCRI


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostsAndExpenses

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestPaidNet

us-gaap:LitigationSettlementExpense
us-gaap:LitigationCase

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:CashAndCashEquivalents
us-gaap:Cash

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:Land

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:FurnitureAndFixturesGross

us-gaap:LeaseholdImprovementsGross

us-gaap:ConstructionInProgressGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:OtherAssets

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:AmortizationOfFinancingCosts

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
us-gaap:CreditFacility
us-gaap:DebtInstrumentInterestRateStatedPercentage

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:Range, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:DeferredTaxLiabilities

mcri:AdjustmentsToAdditionalPaidInCapitalCapitalContribution
us-gaap:StatementEquityComponents

mcri:ConversionOfLongTermDepositToShortTermDeposits

mcri:EffectOfDilutiveStockOptionsPerShareAmount

mcri:ExpenseDueToCovid19Pandemic

mcri:IncreaseDecreaseInNonCashOperatingLeaseExpense

mcri:LegislationLobbingExpenses
us-gaap:UnusualOrInfrequentItem
mcri:PercentageOfPermittedOccupancyCapacity

mcri:ProceedsFromPaymentsForConstructionPayable

mcri:RecoveriesForBadDebts

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:CreditFacility
us-gaap:DebtInstrumentPeriodicPaymentPrincipal

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:GainLossOnDispositionOfAssets
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:HostingArrangementServiceContractImplementationCostExpenseAmortization

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInPrepaidExpense

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestCostsCapitalized
us-gaap:Range
us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
us-gaap:Range, us-gaap:SubsequentEventType
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments

us-gaap:OtherCostAndExpenseOperating
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:PaymentsForRent

us-gaap:PaymentsOfFinancingCosts

us-gaap:PreOpeningCosts

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:WriteOffOfDeferredDebtIssuanceCost

mcri:AccruedGamingTaxesCurrent

mcri:AnnualBaseLimitationInternalRevenueCodeChangeOfOwnershipLimitationsAcquiredOperatingLossCarryforwardsAndTaxCreditCarryforwardAmount
us-gaap:CreditFacility
mcri:BorrowingsUseLimitationRetainageCostPaymentForExpansionProjectMinimumamount

mcri:BuildingImprovements

mcri:Buildings
us-gaap:CreditFacility
mcri:DebtInstrumentCovenantConsolidatedLeverageRatio
us-gaap:Range, us-gaap:CreditFacility
us-gaap:Range, us-gaap:SubsequentEventType
us-gaap:CreditFacility
mcri:DebtInstrumentCovenantFixedChargeCoverageRatio

mcri:DebtInstrumentMandatoryPrincipalPaymentDueInNextTwelveMonths

mcri:DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards

mcri:DeferredTaxAssetsRightOfUseAssets

mcri:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsBadDebtReserves

mcri:DeferredTaxLiabilitiesBaseStock

mcri:DeferredTaxLiabilitiesLeaseRightOfUseLiability

mcri:FederalDeductionOnDeferredStateTaxes
us-gaap:CreditFacility
mcri:LineOfCreditFacilityAdditionalBorrowingCapacity
us-gaap:CreditFacility, us-gaap:UnusualOrInfrequentItem
us-gaap:CreditFacility
mcri:MinimumOperationalLiquidityToBeMaintained
us-gaap:CreditFacility
mcri:OperationalLiquidityAmount
us-gaap:CreditFacility
mcri:OperationalLiquidityThresholdOneAmount

mcri:ProgressiveSlotMachineAndOtherGamingAccrualsCurrent
us-gaap:PlanName
mcri:ShareReserve

us-gaap:AccountsReceivableGrossCurrent
us-gaap:ProductOrService

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:ConstructionPayableCurrent
us-gaap:CreditFacility
us-gaap:DebtInstrumentAnnualPrincipalPayment
us-gaap:StatementScenario, us-gaap:DebtInstrument
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:UnusualOrInfrequentItem
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument
us-gaap:CreditFacility
us-gaap:DebtIssuanceCostsLineOfCreditArrangementsGross

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet

us-gaap:DeferredFinanceCostsNoncurrentGross

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsCharitableContributionCarryforwards

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DerivativeFloorInterestRate

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IncomeTaxesReceivable

us-gaap:InterestPayableCurrent

us-gaap:LandImprovements

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:DebtInstrument
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:UnusualOrInfrequentItem
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LinesOfCreditCurrent
us-gaap:CreditFacility
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:DebtInstrument
us-gaap:StatementScenario, us-gaap:CreditFacility
us-gaap:LongTermDebtPercentageBearingVariableInterestRate
us-gaap:StatementScenario, us-gaap:DebtInstrument

us-gaap:LongTermLineOfCredit
us-gaap:CreditFacility
us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthorityName
us-gaap:IncomeTaxAuthority
us-gaap:IncomeTaxAuthorityName

us-gaap:PrepaidExpenseCurrent

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:TaxCreditCarryforwardAmount
us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthorityName

us-gaap:TreasuryStockCommonValue
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Other Nonoperating Income Expense
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Inventory Net
Current Assets
Inventory Net
NonCurrent Assets
Deferred Income Tax Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CommonStockValue ██████████████████████████████▁▁▁▁▁▁▁▁▁▁▁0.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1909630.1909630.1909630.1909630.1909630.1909630.1909630.1909630.1909630.1909630.190963NA0.190963NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁19.46519.283NA18.86118.18118.874NA18.70918.66618.619NA18.63118.56918.71NA18.39818.20818.021NA17.7217.57917.54NA17.34317.30217.198NA17.01617.10417.259NA17.18018716.70213716.275208NA16.23415816.2494516.274355NA16.23444316.22348816.222989NA16.20972416.220865
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁18.59518.481NA18.21818.18118.158NA18.05617.99717.937NA17.88617.82117.77NA17.61617.52717.477NA17.33817.25917.211NA16.97916.89416.821NA16.816.78816.536NA16.38883516.19185216.147324NA16.14149216.13907416.138158NA16.13815816.13815816.138158NA16.13253116.129053
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption█▁0.2350.21NA1.0621.1221.036NA0.8470.7920.725NA0.4730.4410.236NA0.150.1670.468NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic █▅▇▆▁▃▄▅▅▅▅▆▅▅▄▅▅▄▄▅▄▄▄▅▄▄▄▄▃▄▃▄▅▄▃▄▃▃▃▂▄▃▃▃▃0.980.440.84000000000000010.59-0.240.110.340.520.520.390.40.610.520.380.250.510.410.280.370.450.330.270.30.380.30.240.230.240.180.20.120.340.380.260.080.260.110.10.040.00.220.10.0300000000000000270.170.16
us-gaap:EarningsPerShareDiluted █▅▇▆▁▃▄▅▅▅▅▆▅▅▄▅▅▄▅▅▄▄▄▅▄▄▄▄▄▄▃▄▅▄▃▄▃▃▃▂▄▃▃▃▃0.930.420.810.57-0.240.110.330.50.50.380.390.580.50.360.230.490.40.270.360.450.320.260.290.370.290.240.220.240.180.190.120.320.370.260.080.250.110.10.030.00.220.090.0300000000000000270.170.16
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 COGS Ratio us-gaap:ProductOrService us-gaap:Casino█▆▅▅▁▄▄▅▄▄▄▄▄▄▆▇57.67346.91137.28337.2929.9127.06532.02934.16932.83628.97631.25333.50431.14229.94543.37848.574NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:FoodAndBeverage█▆▅▅▁▅▇▇▆▆▇▇▆▆▆▆22.11616.20612.67112.8352.89314.76318.55218.34117.99317.69218.26118.47217.54116.93816.02216.342NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:HotelOther█▆▅▆▁▅▇▆▆▇▇▆▆▆▇▆3.9773.2082.7923.1290.8812.7663.4693.1973.1233.5673.3953.2163.1293.0223.4283.191NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:Occupancy█▅▃▄▁▄▅▆▅▅▄▅▅▄▃▄13.9538.6355.6316.6131.4726.4178.039.8788.8098.5056.879.1678.0976.3635.587.316NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AllocatedShareBasedCompensationExpense ██▇▆▆▆▇▆▆▆▅▆▅▄▅▄▃▃▄▃▃▁▄▂▂▂▂▂▂▂▃▂▂▂▃▂▂▂▃▂▃1.2471.281.1040.8970.9810.8731.181.0271.0030.9150.8380.9020.8250.5660.7170.5690.4930.4650.6980.4330.4230.1270.6060.3180.3290.2910.3490.3010.3140.2630.4037090.2943810.2863890.235860.4297160.35290.3168660.2684850.380680.361130.412959NANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Casino█▆▅▄▁▄▅▅▅▄▄▅▄▄██18.30413.61811.18410.5662.6529.61811.42811.67411.33710.8210.78411.45510.85610.69618.1819.097NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:FoodAndBeverage█▆▅▄▁▆▇▇▆▆▆▆▆▆▃▃17.50514.09511.1699.6352.79512.52414.48214.56614.32113.99814.01213.713.19613.0946.2666.699NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:HotelOther█▆▅▅▁▆▆▇▆▆▆▆▆▆▄▄1.9921.521.3451.2490.421.4511.631.6991.6341.581.5251.5711.5651.5451.0081.126NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Occupancy█▆▅▄▁▄▄▅▅▄▅▅▄▅▃▄5.3894.2513.412.7960.912.9883.1093.4373.4473.133.1893.3153.0563.4992.1282.735NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses █▇▅▄▁▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▄▄▄▂▃▃▂▂▃▃▂73.96963.67753.16446.44120.63748.954.38254.06251.12850.01950.71850.49348.56747.71147.91949.77746.67645.68845.40444.85745.63342.5943.49843.52741.96540.741.10541.93142.33540.17740.34135340.05040939.48262540.45911340.77987940.9951542.45734931.77781432.71856136.02294131.49109130.62937732.89420333.27313331.693659
us-gaap:GrossProfit █▅▄▆▁▃▄▅▅▄▄▆▅▄▄▅▅▄23.7511.2835.21313.428-5.4812.1117.69811.52311.6338.7219.06113.86611.3428.5578.13713.2511.5537.726NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▅▄▆▁▃▄▅▅▅▅▆▅▄▄▆▅▄▅▅▅▄▄▅▄22.4749.6644.9413.428-5.4812.1117.69911.52311.6338.7219.06113.81111.38.4777.80913.08911.3477.4549.85112.1228.8857.0747.8459.9127.867NANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit █▇▁▇▅▆▇▇▇▇▇▇▇▇███▇██▇▇▇█▇▇▆▇▇▇▇▇█▇▆▇▆▆▆▆▇▆▆▇▇4.3251.51-10.322.683-1.1340.0911.5032.1972.3541.7061.8022.9522.0611.7363.4124.0594.1082.5823.3814.2883.192.4992.7223.5182.7682.2090.6552.3372.171.7681.7369173.0083183.5319942.3568160.901722.2497081.0146750.882250.455473-0.0200711.91590.8287710.1648691.4071.452055
us-gaap:InterestPaidNet ▁█0.8791.328NANANANANANANANA0.0NANANA0.191NANA-0.068NANANA0.0090.0660.0610.1050.1420.2460.160.2050.2420.2385320.3071670.4476180.479180.5685830.5428270.4073050.1397380.1372030.0948270.1244350.176330.2479650.268331NA
us-gaap:LitigationSettlementExpense █▅▇▄▂▁▁▂0.90.60.80.50.20.10.1380.162NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss █▅▇▆▁▃▄▅▅▅▅▆▅▄▄▅▅▄▄▅▄▄18.1498.15415.2610.745-4.3472.026.1969.3269.2797.0157.25910.8599.2396.7414.3979.037.2394.8726.477.8345.6954.575NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense █▁-1.276-1.619NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss █▅▇▆▁▃▄▅▅▅▅▆▅▄▄▅▅▄▄18.1498.15415.2610.745-4.3472.026.1969.3269.2797.0157.25910.8599.2396.7414.3979.037.2394.8726.47NANANANANANANANANANANANANANANANANANANANANA3.558136NANANA2.660331
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▆▅▅▁▄▅▅▅▅▅▅▅▄▄▆▆▅▄▅▄▄▄▄▄▄▄▄▄▄▃▄▄▄▃▄▄▃▃▃▃▃▃▃▃97.71974.9658.37759.86915.15651.01162.0865.58562.76158.7459.77964.35959.90956.26856.05675.42370.20365.21855.59657.10954.57849.74951.48553.57650.01347.17145.85948.59747.80345.50844.5041448.98947949.65109447.64402743.64856747.86171145.84178234.63009234.0121336.17438637.15987333.28581633.84248137.68009836.155896
us-gaap:Revenues █▆▅▅▁▄▅▅▅▅▅▅▅▄▄▅▅▄▄▅▄▄▄▄▄▄▄▄▄▄▃▄▄▄▃▄▄▃▃▃▃▃▃▃▃97.71974.9658.37759.86915.15651.01162.0865.58562.76158.7459.77964.35959.90956.26856.05663.02758.22953.41455.59657.10954.57849.74951.48553.57650.01347.17145.85948.59747.80345.50844.5041448.98947949.65109447.64402743.64856747.86171145.84178234.63009234.0121336.17438637.15987333.28581633.84248137.68009836.155896
us-gaap:SellingGeneralAndAdministrativeExpense ██▇▅▁▆▇▆▆▆▆▆▅▅▆▅▅▄▅▄▄▄▄▄▄▃▄▄▄▄▄▄▃▄▅▄▅▃▃▃▂▂▃▃▃20.60719.92518.47515.8568.8717.19418.46917.88516.50616.45217.67216.79316.15215.18516.60216.39815.0814.63915.60414.43914.53613.15114.53414.34913.31712.57913.13213.44413.1813.23113.9996813.51828712.64331113.97871114.86099814.26969115.3625111.75997212.82036212.10924211.27400710.90722812.12346412.78504311.913997
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:Assets ███▇▇▇▇▇▆▆▅▅▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁666.848664.974671.877599.146597.505594.465610.878565.158533.181496.614455.127425.818373.246343.405332.087322.489305.051299.903295.165284.876281.167276.578274.846265.129258.004251.784252.301242.744242.372242.277244.523242242.540582242.585762246.470211248.119955247.619546249.07318175.642271179.599604170.787659171.352867NA179.733538NANA
us-gaap:Liabilities ▇██▆▇▇▇▆▆▅▄▃▂▂▂▂▁▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▃▃▁▁▁▁265.761285.064303.81245.616257.083250.371269.677232.465212.056186.457153.945133.16692.63873.93265.61362.30456.93160.22461.3259.76964.99967.58170.92769.71969.36370.20275.3570.04274.07476.28880.64295681.8549989.526159101.124559107.272165108.580773114.52438643.21643849.08362441.21965342.157271NA57.151929NANA
us-gaap:LiabilitiesAndStockholdersEquity ███▇▇▇▇▇▆▆▅▅▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁666.848664.974671.877599.146597.505594.465610.878565.158533.181496.614455.127425.818373.246343.405332.087322.489305.051299.903295.165284.876281.167276.578274.846265.129258.004251.784252.301242.744242.372242.277244.523242242.540582242.585762246.470211248.119955247.619546249.07318175.642271179.599604170.787659171.352867NA179.733538NANA
us-gaap:StockholdersEquity █▇▇▇▆▇▆▆▆▆▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁401.087379.91368.067353.53340.422344.094341.201332.693321.125310.157301.182292.652280.608269.473266.474260.185248.12239.679233.845225.107216.168208.997203.919195.41188.641181.582176.951172.702168.298165.989163.880286160.685592153.059603145.345652140.84779139.038773134.548794132.425833130.51598129.568006NANA122.581609NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AssetsCurrent █▇▇▅▅▅█▄▄▃▄▅▃▄▄▄▃▃▃▂▂▂▂▃▃▂▃▃▃▂▃▂▂▃▂▂▂▁▂▂▁75.19169.53873.15650.26656.61655.92879.15545.97941.07937.51346.68149.56240.07442.97146.03142.20636.99835.96239.41131.67731.60528.42331.78732.90533.15830.17434.26233.24932.12831.54433.97972830.94702630.24483432.61959631.94516825.1583924.73293922.94413624.86240923.74123919.103379NA22.990656NANA
 us-gaap:Cash us-gaap:CashAndCashEquivalents us-gaap:MoneyMarketFundsNANA2.04.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▁▂▂▄▄█▂▂▁▂▃▂28.29624.14328.3130.52638.3239.35860.53929.08826.52623.81730.46234.69427.133NA29.151NANANA26.383NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▇▁▃▄▂▃▅▅8.6727.7223.7365.2835.7514.1945.4586.7636.404NA6.74NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InventoryNet ▆▇█▇▇▇▇▄▃▃▃▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂▁▁▁▁▁▁6.0776.9687.8237.3486.9946.8896.7354.543.73.6173.6923.3243.33.2443.3353.113.1912.9043.0972.8072.8982.8382.8812.6882.5882.8542.8462.6162.4262.3942.6751452.4600042.2704742.3648662.3828022.1392022.2657731.9680482.1651091.9073431.965832NA1.883816NANA
us-gaap:Land NANA32.98630.76930.76930.76930.76930.76930.03430.03430.03430.03430.03430.03430.03430.03429.54929.54929.54929.54929.54929.54929.54929.41529.41529.41529.41528.6828.6828.6828.68034727.91484727.91484727.91484727.91484727.91484727.91484719.21484719.21484713.17252213.172522NA13.172522NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:PropertyPlantAndEquipmentGross ███▇▇▇▇▇▆▆▅▅▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁805.247808.502802.274746.985737.011732.139721.504703.03672.133635.374580.981549.884503.129466.556448.352434.988418.9411.577399.402397.989394.658390.009383.946372.901361.586354.975347.769353.761350.557346.888342.630217338.749409335.871396333.689854331.294313328.933439326.092355292.884716291.441013281.476163284.310657NA281.868297NANA
us-gaap:FurnitureAndFixturesGross NANA229.052149.412149.718153.661152.461150.249148.699145.245139.772143.726141.915141.483140.404138.257136.5136.059134.603133.395134.063136.432134.704129.026127.285126.694125.671136.61135.566135.456134.424884140.40147137.523457135.341915132.946374130.8742128.022083118.744444117.300741116.313681114.948175NA112.847107NANA
us-gaap:LeaseholdImprovementsGross NANA3.8483.8483.8483.8483.8483.8483.7823.7823.7823.7823.7823.7823.82.6882.6882.6882.6881.3471.3471.3471.3471.3471.3471.3471.3471.3471.3471.3471.3469651.3469651.3469651.3469651.3469651.3469651.3469651.3469651.3469651.3469651.346965NA1.346965NANA
us-gaap:ConstructionInProgressGross NANA6.257314.888304.448295.429285.789275.12246.67213.263180.518146.315101.3765.90948.83439.327.32620.4869.76750.2146.24941.8737.42435.61426.0420.18915.6729.58211.6778.1184.891NANANANANANANANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▄▅▄▄▄▄▄▄▃▄▄▄▃▃▃▃▂▂▂▂▁▁▁239.37238.958229.767226.562224.871223.55220.021216.695213.301209.969206.657207.692204.447201.038197.638194.282190.851188.065184.503186.132184.266181.392180.792177.342173.773170.765167.498178.069174.484170.694166.992754163.258754160.001038156.823265152.868719149.202728145.247727141.602952138.227868134.789021132.244423NA125.437458NANA
us-gaap:PropertyPlantAndEquipmentNet ███▇▇▇▇▇▆▆▅▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▂▂▂▁▁▁▁565.877569.544572.507520.423512.14508.589501.483486.335458.832425.405374.324342.192298.682265.518250.714240.706228.049223.512214.899211.857210.392208.617203.154195.559187.813184.21180.271175.692176.073176.194175.637463175.490655175.870358176.866589178.425594179.730711180.844628151.281764153.213145146.687142152.066234NA156.430839NANA
us-gaap:Goodwill █████▁▁████████████████████████████25.11125.11125.11125.11125.11125.125.125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.11125.1108125.1108125.1108125.1108125.11081NANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▁▂▁▂▂▃▄▄▅▆▆▇▇█0.5390.6510.9730.6630.9551.2461.5381.8292.1212.4122.7042.9953.2863.5783.869NANANA5.035NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA14.78414.97715.16715.36915.57415.77615.97516.175NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseRightOfUseAsset us-gaap:RelatedPartyTransaction,us-gaap:RelatedPartyTransactionsByRelatedParty mcri:ShoppingCenterDrivewayLease,mcri:BiggestLittleInvestmentsLimitedPartnership▁▃▃▆▆█3.83.93.94.04.04.1NA4.24.24.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingLeaseRightOfUseAsset us-gaap:RelatedPartyTransaction,us-gaap:RelatedPartyTransactionsByRelatedParty mcri:ShoppingCenterSurfaceLotLease,mcri:BiggestLittleInvestmentsLimitedPartnershipNANA10.510.610.610.7NA10.910.910.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AccountsPayableCurrent ▆▅▅▄▁▁█▄▄▃▄▃▂▃▂▂▂▂▃▂▂▂▁▂▁▁▂▂▂▂▃▂▂▂▂▃▄▂▃▂▂13.7912.35811.65511.2826.5916.57917.03711.14911.5019.52211.1828.8757.4118.7188.1848.2427.1777.4968.727.3588.0028.06.7478.1346.4346.2597.9337.8717.9227.3638.665578.0658198.0685238.3518768.061579.10849710.474627.0911718.6933957.9190168.238242NA10.216495NANA
us-gaap:AccruedIncomeTaxesCurrent NANANA1.454NANANANANANANANANANANANANANANANANANANANANANANANANANANANA0.0132112.4312170.274401NA0.9625791.650890.76864NANANANANANA
us-gaap:AccruedLiabilitiesCurrent █▇▆▆▄▅▆▆▅▅▅▅▅▅▄▄▃▃▄▃▃▃▃▃▂▃▃▂▂▂▂▂▂▃▂▂▂▂▁▁▁41.90237.16734.70534.63425.52828.20834.10932.7431.03829.57431.11129.92928.87227.79725.40623.11321.05321.52123.79521.29820.59120.47821.87319.99218.49718.67219.32718.00516.97117.66118.17738617.48917116.64442518.54146617.83619417.37227615.08718714.38232813.8295413.20200312.11547NA14.077344NANA
us-gaap:LiabilitiesCurrent █▇▇▄▄▄▅▄▄▄▄▄▃▃▂▂▂▂▂▂▂▄▄▂▁▁▂▁▁▁▁▁▁▂▁▁▁▁▁▁▂123.902115.53109.44459.56361.00762.72779.46561.62664.36660.55559.44563.89655.66847.73239.41336.10430.73134.02435.1229.86929.99967.58170.92731.81927.16328.20229.0526.64225.17427.38826.84295625.5549924.72615929.32455926.17216526.48077326.52438623.12438923.29157521.12101937.899181NA24.293839NANA
us-gaap:OperatingLeaseLiabilityCurrent ▁▅█▇▇▇▇▇█▇0.6540.7370.8130.80.7880.7880.7910.7970.8020.796NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent NANA5.385NANANA5.579NANANA3.513NANANA3.02NANANA2.568NANANA2.065NANANA2.857NANANA3.565808NANANA4.115176NANANA5.87422NANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:DeferredIncomeTaxLiabilitiesNet ██▁13.22113.22113.22NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▁▂▂▃▄▅▆▆▇█13.73813.85813.98414.18914.39214.59514.79714.98915.1815.382NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA1.078NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA1.072NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA1.072NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA1.072NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA16.94NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:StockholdersEquity █▇▇▇▆▇▆▆▆▆▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁401.087379.91368.067353.53340.422344.094341.201332.693321.125310.157301.182292.652280.608269.473266.474260.185248.12239.679233.845225.107216.168208.997203.919195.41188.641181.582176.951172.702168.298165.989163.880286160.685592153.059603145.345652140.84779139.038773134.548794132.425833130.51598129.568006NANA122.581609NANA
us-gaap:CommonStockValue ██████████████████████████████▁▁▁▁▁▁▁▁▁▁▁0.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1909630.1909630.1909630.1909630.1909630.1909630.1909630.1909630.1909630.1909630.190963NA0.190963NANA
us-gaap:AdditionalPaidInCapitalCommonStock █▇▆▇▇▇▆▆▅▅▄▄▃▃▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▂▅▄▅▆▆▆▆▆▆▅▅38.84336.92134.49837.46636.08935.6635.21533.72832.41131.26730.11129.18828.2827.54126.8926.23124.79824.29923.83422.96522.6322.67322.72823.14822.85323.07122.98522.70622.45625.33930.92612630.49563932.82216734.5995534.3636934.0442333.69133133.44683133.17834532.79766432.436533NA31.558693NANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁368.553350.404342.25326.99316.245320.592318.572312.376303.05293.771286.756279.497268.638259.399257.516253.119244.089236.85231.978225.508217.674211.979207.404202.281195.887190.788186.745182.934178.86175.836172.560005170.500932164.981423158.861185154.599183153.25954149.12246147.329702145.688335145.121042145.109763NA139.373616NANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█1.2471.28NA0.8970.9810.873NA1.0271.0030.915NA0.9020.8250.566NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities █▆▄▇▂▁▅▅▅▅▅▅▅▅▅▅▄▄▅33.34921.85412.15929.302-2.551-7.46615.27716.31718.18413.46813.76516.52215.44213.02714.70916.4437.99210.3114.553NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ██▇▆▇▆▄▂▂▂▁▁▄▇▇▆▇▇█-5.977-5.93-10.046-13.779-8.853-13.715-24.226-37.095-37.465-36.133-43.227-41.261-28.447-12.81-12.379-13.84-8.312-12.155-5.07NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂█▁-23.219-20.091-4.329-23.317NANA40.423.34NANA25.2332.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AmortizationOfFinancingCosts ▁██▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▃▃▃▃▃▃-0.0550.2930.2980.1970.1350.1340.1350.1340.1350.1340.1350.1340.1340.1350.1350.1340.1350.1340.1350.1220.0770.0760.1090.0770.0760.0760.0760.0770.0760.0760.0762790.076280.076280.0762790.076280.0762790.0442330.1076790.0656790.0643940.0643960.0643940.0643950.064395NA
us-gaap:DepreciationDepletionAndAmortization ██▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁9.369.5145.783.8913.8333.823.8913.6863.6953.6033.5363.6513.7383.6923.7353.7223.7693.9063.7013.644NA3.73.7763.9184.1084.1314.324.184.634.6944.0655183.5491064.3798734.6434354.3683134.6470024.2602053.3750843.2345393.3145983.4360153.3943863.3614123.3942583.21439
us-gaap:IncreaseDecreaseInAccountsPayable ▆▆▆▇▅▁█▅▆▅▆▆▅▆▅▆▅▅▆▅▅▆▅▆▆▅▆▅▆▅▆▅▅▆▅▅▇▅▆▅▆▄▇▅1.4320.7030.3734.6910.012-10.4585.888-0.3521.979-1.662.3071.464-1.3070.534-0.0581.066-0.215-1.2241.362-0.6440.0021.253-1.3871.70.175-1.6740.062-0.0510.559-1.3030.599751-0.002704-0.2833530.290306-1.046928-1.3661313.11681-1.6022240.774379-0.3192260.541955-2.5202083.2439540.014423NA
us-gaap:IncreaseDecreaseInAccountsReceivable ▄█▁▂▅▁▁▃▄▁▃▅0.9354.025-1.463-0.4391.527-1.188-1.160.3791.066-1.378-0.1271.976NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInInventories ▁▁▄▄▃▃█▅▃▃▄▃▃▃▄▃▄▃▄▃▃▃▃▃▂▃▄▃▃▂▄▃▃▃▄▃▃▃▄▃▃▃▃▃-0.891-0.8550.4750.3540.1050.1542.1950.840.083-0.0750.3680.0240.056-0.0910.225-0.0810.287-0.1930.29-0.0910.06-0.0430.1930.1-0.2660.0080.230.190.032-0.2810.2151410.18953-0.094392-0.0179360.2436-0.1265710.204725-0.1970610.257766-0.0584890.091193-0.0091770.0835990.108583NA
us-gaap:NetCashProvidedByUsedInOperatingActivities █▆▄▇▂▁▅▅▅▅▅▅▅▅▅▅▄▄▅33.34921.85412.15929.302-2.551-7.46615.27716.31718.18413.46813.76516.52215.44213.02714.70916.4437.99210.3114.553NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss █▅▇▆▁▃▄▅▅▅▅▆▅▄▄▅▅▄▄▅▄▄18.1498.15415.2610.745-4.3472.026.1969.3269.2797.0157.25910.8599.2396.7414.3979.037.2394.8726.477.8345.6954.575NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss █▅▇▆▁▃▄▅▅▅▅▆▅▄▄▅▅▄▄18.1498.15415.2610.745-4.3472.026.1969.3269.2797.0157.25910.8599.2396.7414.3979.037.2394.8726.47NANANANANANANANANANANANANANANANANANANANANA3.558136NANANA2.660331
us-gaap:ShareBasedCompensation ▄▄▃▂▄▃▆▆▅▅▄▄▅▃▅█▄▃▂▂▂▁▂▁▁▁▂▁▁▁▂▁▁▁▂▂▁▁▂▂▂▂▂▁1.2471.281.1040.5691.3090.8732.3112.2431.6891.961.2711.1851.8971.1151.8923.0361.2010.9620.6980.4330.4230.1270.6060.3180.3290.2910.3490.3010.3130.2630.4037090.2943810.2863890.235860.4297160.35290.3168660.2684850.380680.361130.4129590.4648810.5197140.320707NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ██▇▆▇▆▄▂▂▂▁▁▄▇▇▆▇▇█-5.977-5.93-10.046-13.779-8.853-13.715-24.226-37.095-37.465-36.133-43.227-41.261-28.447-12.81-12.379-13.84-8.312-12.155-5.07NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▂█▂▂▂▃▅▅▆▅▇▅▃▃▃▂▂▂▁▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁5.7786.42758.4312.0737.32510.83919.02231.09737.03138.21735.37846.87736.61518.20413.45316.0888.20312.2466.4754.8185.98.92811.10111.3737.4227.788.73.5214.5384.964.1804432.8780142.9464662.3955422.374562.8521133.6585391.4437039.7605421.3655061.0897421.3760532.8741591.354768NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂█▁-23.219-20.091-4.329-23.317NANA40.423.34NANA25.2332.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA2.063-7.25NANA44.1523.34NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt █▇▁▅25.022.54.56315.0NANANANANANANANANANANANANANA3.75.10.45.5-3.04.3-0.24.3-2.95.50.04.92.58.57.09.34.38.13.245.72.55.05.06.64.75.8NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:CreditFacility mcri:TermLoanFacilityNANA2.75e-06NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value19191818181818181818181818181717171717171717171716161616161616161616
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value18181818181817171717171717171717171616161616161616161616161616161616
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0.2350.211.0621.1221.0360.8470.7920.7250.4730.4410.2360.150.1670.468
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.980.440.840.59-0.240.110.340.520.520.390.40.610.520.380.250.510.410.280.370.450.330.270.30.380.30.240.230.240.180.20.120.340.380.260.080.260.110.10.0400.220.10.030.170.16
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.930.420.810.57-0.240.110.330.50.50.380.390.580.50.360.230.490.40.270.360.450.320.260.290.370.290.240.220.240.180.190.120.320.370.260.080.250.110.10.0300.220.090.030.170.16
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1247000.01280000.01104000.0897000.0981000.0873000.01180000.01027000.01003000.0915000.0838000.0902000.0825000.0566000.0717000.0569000.0493000.0465000.0698000.0433000.0423000.0127000.0606000.0318000.0329000.0291000.0349000.0301000.0314000.0263000.0403710.0294380.0286390.0235860.0429720.0352900.0316870.0268480.0380680.0361130.0412960.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.70.01.56.51.71.91.61.61.61.41.41.41.01.30.80.70.71.30.80.80.31.20.60.70.60.80.60.70.60.90.60.60.51.00.70.70.81.11.01.1

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:Casino


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value71000.042000.066000.046000.056000.053000.051000.055000.046000.031000.017000.043000.038000.014000.032000.0
Percentage of AllocatedShareBasedCompensationExpense5.73.36.05.15.74.55.05.55.03.71.95.26.72.05.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.00.10.40.10.10.10.10.10.00.10.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Casino0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FoodAndBeverage


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value22000.046000.0-140000.045000.012000.057000.061000.052000.048000.050000.048000.015000.036000.038000.02000.027000.0
Percentage of AllocatedShareBasedCompensationExpense1.83.6-12.75.01.26.55.25.14.85.55.71.74.46.70.34.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.00.10.10.10.10.10.10.10.10.00.10.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FoodAndBeverage0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Occupancy


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value40000.032000.039000.033000.027000.028000.038000.028000.022000.021000.028000.017000.011000.010000.09000.08000.0
Percentage of AllocatedShareBasedCompensationExpense3.22.53.53.72.83.23.22.72.22.33.31.91.31.81.31.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.10.20.10.10.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Occupancy0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1114000.01160000.01139000.0773000.0886000.0788000.01028000.0896000.0878000.0798000.0731000.0853000.0735000.0480000.0692000.0502000.0420000.0391000.0655000.0367000.0356000.070000.0546000.0296000.0290000.0248000.0317000.0271000.0285000.0230000.0441780.0272000.0251000.0199000.0
Percentage of AllocatedShareBasedCompensationExpense89.390.6103.286.290.390.387.187.287.587.287.294.689.184.896.588.285.284.193.884.884.255.190.193.188.185.290.890.090.887.5109.492.487.684.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.50.01.35.81.51.71.41.41.41.21.31.20.91.20.70.60.61.20.60.70.11.10.60.60.50.70.60.60.51.00.60.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

us-gaap:Casino


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value181311102.6529.61811111110101110101819
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.718.20.017.617.518.918.417.818.118.418.017.818.119.032.425.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Casino31.729.00.028.326.835.50.034.234.537.30.034.234.935.70.039.3

us-gaap:FoodAndBeverage


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1714119.6352.7951214141413141313136.2666.699
Percentage of CostOfGoodsAndServicesSold95.6103.599.991.2105.4130.2126.7124.8126.3129.4129.9119.6121.6122.434.535.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.918.80.016.118.424.623.322.222.823.823.421.322.023.311.28.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FoodAndBeverage79.287.00.075.196.684.80.079.479.679.10.074.275.277.30.041.0

us-gaap:HotelOther


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.9921.521.3451.2490.421.4511.631.6991.6341.581.5251.5711.5651.5451.0081.126
Percentage of CostOfGoodsAndServicesSold10.911.212.011.815.815.114.314.614.414.614.113.714.414.45.55.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.00.02.12.82.82.62.62.62.72.62.42.62.71.81.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:HotelOther50.147.40.039.947.752.50.053.152.344.30.048.850.051.10.035.3

us-gaap:Occupancy


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5.3894.2513.412.7960.912.9883.1093.4373.4473.133.1893.3153.0563.4992.1282.735
Percentage of CostOfGoodsAndServicesSold29.431.230.526.534.331.127.229.430.428.929.628.928.232.711.714.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.55.70.04.76.05.95.05.25.55.35.35.25.16.23.83.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Occupancy38.649.20.042.361.846.60.034.839.136.80.036.237.755.00.037.4

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value736353462048545451505050484747494645454445424343414041414240404039404040423132363130323331
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.784.90.077.6136.295.987.682.481.585.284.878.581.184.885.566.066.570.181.778.583.685.684.581.283.986.389.686.388.688.390.681.879.584.993.485.792.691.896.299.684.792.00.088.387.7

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value23115.21313-5.4812.1117.69811118.7219.06113118.5578.13713117.726
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.315.10.022.4-36.24.112.417.618.514.815.221.518.915.214.517.616.511.8

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value229.6644.9413-5.4812.1117.69911118.7219.06113118.4777.80913117.4549.851128.8857.0747.8459.9127.867
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.012.90.022.4-36.24.112.417.618.514.815.221.518.915.113.917.416.211.417.721.216.314.215.218.515.7

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4.3251.51-10.322.683-1.1340.0911.5032.1972.3541.7061.8022.9522.0611.7363.4124.0594.1082.5823.3814.2883.192.4992.7223.5182.7682.2090.6552.3372.171.7681.7369173.0083183.5319942.3568160.901722.2497081.0146750.882250.455473-0.0200711.91590.8287710.1648691.4071.452055
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.42.00.04.5-7.50.22.43.33.82.93.04.63.43.16.15.45.94.06.17.55.85.05.36.65.54.71.44.84.53.93.96.17.14.92.14.72.22.51.3-0.15.22.50.03.74.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312018-12-312017-12-312017-03-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value879000.01328000.00191000.0-68000.09000.066000.061000.0105000.0142000.0246000.0160000.0205000.0242000.0238530.0307170.0447620.0479180.0568580.0542830.0407300.0139740.0137200.094827.0124440.0176330.0247960.0268330.0
Percentage of InterestPaidNet100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.80.00.3-0.10.00.10.10.20.30.50.30.40.50.50.60.91.01.31.10.90.40.40.30.30.50.00.7

Litigation Settlement Expense

us-gaap:LitigationSettlementExpense

us-gaap:LitigationSettlementExpense


Litigation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value900000.0600000.0800000.0500000.0200000.0100000.0138000.0162000.0
Percentage of LitigationSettlementExpense100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.80.00.81.30.20.20.2

us-gaap:LitigationSettlementExpense us-gaap:LitigationCase

mcri:PclConstructionServicesInc.


Litigation
Period End2020-12-312020-09-302020-06-302020-03-312019-09-30
Value800000.0500000.0200000.0100000.0200000.0
Percentage of LitigationSettlementExpense100.0100.0100.0100.0123.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.81.30.20.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mcri:PclConstructionServicesInc.0.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value188.1541510-4.3472.026.1969.3269.2797.0157.259109.2396.7414.3979.037.2394.8726.477.8345.6954.575
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.610.90.017.9-28.74.010.014.214.811.912.116.915.412.07.812.010.37.511.613.710.49.2

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value188.15410-4.3472.029.3269.2797.015109.2396.741
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.610.917.9-28.74.014.214.811.916.915.412.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-31
Value-1276000.0-1619000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-2.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312011-06-302010-06-30
Value188.1541510-4.3472.026.1969.3269.2797.0157.259109.2396.7414.3979.037.2394.8726.473.5581362.660331
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.610.90.017.9-28.74.010.014.214.811.912.116.915.412.07.812.010.37.511.69.67.4

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value977458591551626562585964595656757065555754495153504745484745444849474347453434363733333736
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:Casino


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value574637379.912732343228313331294348
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.062.663.962.365.453.151.652.152.349.352.352.152.053.277.464.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.062.663.962.365.453.151.652.152.349.352.352.152.053.277.464.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Casino100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FoodAndBeverage


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value221612122.8931418181717181817161616
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.621.621.721.419.128.929.928.028.730.130.528.729.330.128.621.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.621.621.721.419.128.929.928.028.730.130.528.729.330.128.621.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FoodAndBeverage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HotelOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3.9773.2082.7923.1290.8812.7663.4693.1973.1233.5673.3953.2163.1293.0223.4283.191
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.34.85.25.85.45.64.95.06.15.75.05.25.46.14.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.34.85.25.85.45.64.95.06.15.75.05.25.46.14.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:HotelOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Occupancy


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value138.6355.6316.6131.4726.4178.039.8788.8098.5056.879.1678.0976.3635.587.316
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.311.59.611.09.712.612.915.114.014.511.514.213.511.310.09.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.311.59.611.09.712.612.915.114.014.511.514.213.511.310.09.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Occupancy100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value977458591551626562585964595656635853555754495153504745484745444849474347453434363733333736
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.083.682.981.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value201918158.8717181716161716161516161514151414131414131213131313131312131414151112121110121211
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.126.631.626.558.533.729.827.326.328.029.626.127.027.029.621.721.522.428.125.326.626.428.226.826.626.728.627.727.629.131.527.625.529.334.029.833.534.037.733.530.332.835.833.933.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value666664671599597594610565533496455425373343332322305299295284281276274265258251252242242242244242242246248247249175179170171179
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2652853032452572502692322121861531339273656256606159646770696970757074768081891011071081144349414257
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.942.945.241.043.042.144.141.139.837.533.831.324.821.519.819.318.720.120.821.023.124.425.826.326.927.929.928.930.631.533.033.736.941.043.243.846.024.627.324.124.631.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value666664671599597594610565533496455425373343332322305299295284281276274265258251252242242242244242242246248247249175179170171179
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-312008-12-31
Value401379368353340344341332321310301292280269266260248239233225216208203195188181176172168165163160153145140139134132130129122112105
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets60.157.154.859.057.057.955.958.960.262.566.268.775.278.580.280.781.379.979.279.076.975.674.273.773.172.170.171.169.468.567.066.363.159.056.856.254.075.472.775.968.20.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value383634373635353332313029282726232222303433313028
Percentage of StockholdersEquity9.79.79.410.610.610.410.310.110.110.110.010.110.110.210.110.211.113.018.924.425.425.726.726.6
Percentage of Assets5.85.65.16.36.06.05.86.06.16.36.66.97.68.08.18.18.39.112.613.818.517.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1909630.1909630.1909630.1909630.1909630.190963
Percentage of StockholdersEquity0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value368350342326316320318312303293286279268259257231207186172154145139131126
Percentage of StockholdersEquity91.992.293.092.592.993.293.493.994.494.795.295.595.796.396.699.2101.7105.5105.3109.8111.6113.7116.6119.6
Percentage of Assets55.352.750.954.652.953.952.155.356.859.263.065.672.075.577.578.675.574.070.662.381.177.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-6.5-7.606-8.872-11.117-12.103-12.349-12.777-13.602-14.527-15.072-15.876-16.494-16.501-17.658-18.123-22.158-26.404-32.97
Percentage of StockholdersEquity-1.6-2.0-2.4-3.1-3.6-3.6-3.7-4.1-4.5-4.9-5.3-5.6-5.9-6.6-6.8-9.5-12.9-18.6
Percentage of Assets-1.0-1.1-1.3-1.9-2.0-2.1-2.1-2.4-2.7-3.0-3.5-3.9-4.4-5.1-5.5-7.5-9.6-13.1
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value756973505655794541374649404246423635393131283132333034333231333030323125242224231922
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.310.510.98.49.59.413.08.17.77.610.311.610.712.513.913.112.112.013.411.111.210.311.612.412.912.013.613.713.313.013.912.812.513.212.910.29.913.113.813.911.112.8

Cash

us-gaap:Cash us-gaap:CashAndCashEquivalents

us-gaap:Cash

us-gaap:MoneyMarketFunds


Cashus-gaap:
Period End2020-12-312020-09-30
Value2000000.04000000.0
Percentage of Cash100.0100.0
Percentage of Assets0.30.7
Percentage of Assets us-gaap:MoneyMarketFunds0.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value282428303839602926233034272926
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.23.64.25.16.46.69.95.15.04.86.78.17.38.88.9

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value8672000.07722000.03736000.05283000.05751000.04194000.05458000.06763000.06404000.06740000.0
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.20.60.91.00.70.91.21.21.5

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value6077000.06968000.07823000.07348000.06994000.06889000.06735000.04540000.03700000.03617000.03692000.03324000.03300000.03244000.03335000.03110000.03191000.02904000.03097000.02807000.02898000.02838000.02881000.02688000.02588000.02854000.02846000.02616000.02426000.02394000.02675100.02460000.02270500.02364900.02382800.02139200.02265800.01968000.02165100.01907300.01965800.01883800.0
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.01.21.21.21.21.10.80.70.70.80.80.90.91.01.01.01.01.01.01.01.01.01.01.01.11.11.11.01.01.11.00.91.01.00.90.91.11.21.11.11.0

Land

us-gaap:Land

us-gaap:Land


Land
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value32303030303030303030303030302929292929292929292929282828282727272727271919131313
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.95.15.15.25.05.45.66.06.67.18.08.79.09.39.79.910.010.410.510.710.811.111.411.711.711.811.811.811.711.511.511.311.311.311.210.910.77.77.77.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value805808802746737732721703672635580549503466448434418411399397394390383372361354347353350346342338335333331328326292291281284281
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets120.8121.6119.4124.7123.3123.2118.1124.4126.1127.9127.7129.1134.8135.9135.0134.9137.3137.2135.3139.7140.4141.0139.7140.6140.1141.0137.8145.7144.6143.2140.1139.7138.5135.4133.5132.8130.9166.8162.3164.8165.9156.8

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

mcri:RightOfUseAssets


Property
Period End2021-06-302021-03-312020-12-31
Value141414
Percentage of PropertyPlantAndEquipmentGross1.81.81.8
Percentage of Assets2.22.22.2
Percentage of Assets mcri:RightOfUseAssets0.00.00.0

us-gaap:Building


Property
Period End2021-06-302021-03-312020-12-31
Value469469471
Percentage of PropertyPlantAndEquipmentGross58.358.058.8
Percentage of Assets70.370.570.2
Percentage of Assets us-gaap:Building0.00.00.0

us-gaap:BuildingImprovements


Property
Period End2021-06-302021-03-312020-12-31
Value353333
Percentage of PropertyPlantAndEquipmentGross4.44.24.2
Percentage of Assets5.35.15.0
Percentage of Assets us-gaap:BuildingImprovements0.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-31
Value19106.257
Percentage of PropertyPlantAndEquipmentGross2.41.30.8
Percentage of Assets2.91.60.9
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-06-302021-03-312020-12-31
Value220233229
Percentage of PropertyPlantAndEquipmentGross27.428.928.6
Percentage of Assets33.135.234.1
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.0

us-gaap:LandImprovements


Property
Period End2021-06-302021-03-312020-12-31
Value9.8989.8489.847
Percentage of PropertyPlantAndEquipmentGross1.21.21.2
Percentage of Assets1.51.51.5
Percentage of Assets us-gaap:LandImprovements0.00.00.0

Furniture And Fixtures Gross

us-gaap:FurnitureAndFixturesGross

us-gaap:FurnitureAndFixturesGross


Furniture
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value229149149153152150148145139143141141140138136136134133134136134129127126125136135135134140137135132130128118117116114112
Percentage of FurnitureAndFixturesGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.124.925.125.825.026.627.929.230.733.838.041.242.342.944.745.445.646.847.749.349.048.749.350.349.856.355.955.955.057.956.754.953.652.951.467.665.368.167.162.8

Leasehold Improvements Gross

us-gaap:LeaseholdImprovementsGross

us-gaap:LeaseholdImprovementsGross


Leasehold
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3848000.03848000.03848000.03848000.03848000.03848000.03782000.03782000.03782000.03782000.03782000.03782000.03800000.02688000.02688000.02688000.02688000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.01347000.0
Percentage of LeaseholdImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.60.70.70.80.80.91.01.11.10.80.90.90.90.50.50.50.50.50.50.50.50.60.60.60.60.60.60.50.50.50.50.80.70.80.80.7

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6.25731430429528527524621318014610165483927209.76750464137352620159.582118.1184.891
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.952.651.049.746.848.746.342.939.734.427.219.214.712.29.06.83.317.616.415.113.613.410.18.06.23.94.83.42.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value239238229226224223220216213209206207204201197194190188184186184181180177173170167178174170166163160156152149145141138134132125
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.935.934.237.837.637.636.038.340.042.345.448.854.858.559.560.262.662.762.565.365.565.665.866.967.467.866.473.472.070.568.367.366.063.661.660.358.380.677.078.977.269.8

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value565569572520512508501486458425374342298265250240228223214211210208203195187184180175176176175175175176178179180151153146152156
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets84.985.685.286.985.785.682.186.186.185.782.280.480.077.375.574.674.874.572.874.474.875.473.973.872.873.271.572.472.672.771.872.472.571.871.972.672.686.185.385.988.787.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2525252525252525252525252525252525252525252525252525252525252525252525
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.83.83.74.24.24.24.14.44.75.15.55.96.77.37.67.88.28.48.58.88.99.19.19.59.710.010.010.310.410.410.310.410.410.210.1

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.5390.6510.9730.6630.9551.2461.5381.8292.1212.4122.7042.9953.2863.5783.8695.035
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.20.20.30.30.40.50.60.70.91.01.21.7

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312019-12-312016-12-312015-12-312014-12-312013-12-31
Value0.41.55.06.27.48.5
Percentage of FiniteLivedIntangibleAssetsNet41.197.599.30.00.00.0
Percentage of Assets0.10.21.72.32.93.5
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1414151515151516
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.52.52.62.52.83.03.3

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

mcri:ShoppingCenterDrivewayLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3.83.93.94.04.04.14.24.24.3
Percentage of OperatingLeaseRightOfUseAsset0.00.026.426.726.426.726.626.326.6
Percentage of Assets0.60.60.60.70.70.70.70.80.9
Percentage of Assets mcri:ShoppingCenterDrivewayLease mcri:BiggestLittleInvestmentsLimitedPartnership0.00.00.00.00.00.00.00.00.0

mcri:ShoppingCenterSurfaceLotLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value10101010101010
Percentage of OperatingLeaseRightOfUseAsset71.070.869.969.669.168.267.4
Percentage of Assets1.61.81.81.81.92.02.2
Percentage of Assets mcri:ShoppingCenterSurfaceLotLease mcri:BiggestLittleInvestmentsLimitedPartnership0.00.00.00.00.00.00.0

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value26282829303233333434343435394040404139393936373737333434343636363742431.52405
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.94.74.85.05.05.86.26.87.58.09.210.210.612.313.113.513.814.513.914.314.513.814.414.915.013.914.114.314.314.915.015.015.217.317.50.8

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value131211116.5916.5791711119.522118.8757.4118.7188.1848.2427.1777.4968.727.3588.0028.06.7478.1346.4346.2597.9337.8717.9227.3638.665578.0658198.0685238.3518768.061579.108497107.0911718.6933957.9190168.23824210
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.11.91.71.91.11.12.82.02.21.92.52.12.02.52.52.62.42.53.02.62.82.92.53.12.52.53.13.23.33.03.53.33.33.43.23.74.24.04.84.64.85.7

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2020-09-302013-06-302013-03-312012-12-312012-06-302012-03-312011-12-31
Value1454000.013211.02431200.0274400.0962580.01650900.0768640.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.01.00.10.40.90.4

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value413734342528343231293129282725232121232120202119181819181617181716181717151413131214
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.35.65.25.84.34.75.65.85.86.06.87.07.78.17.77.26.97.28.17.57.37.48.07.57.27.47.77.47.07.37.47.26.97.57.27.06.18.27.77.77.17.8

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value123115109596162796164605963554739363034352929677031272829262527262524292626262323213724
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.617.416.39.910.210.613.010.912.112.213.115.014.913.911.911.210.111.311.910.510.724.425.812.010.511.211.511.010.411.311.010.510.211.910.510.710.613.213.012.422.113.5

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value654000.0737000.0813000.0800000.0788000.0788000.0791000.0797000.0802000.0796000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.20.2

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value5385000.05579000.03513000.03020000.02568000.02065000.02857000.03565800.04115200.05874200.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.90.80.90.90.81.11.51.73.3

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-31
Value131313
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0
Percentage of Assets2.02.02.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value13131314141414141515
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.12.12.42.42.52.42.72.83.1

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value1078000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value1072000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value1072000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value1072000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value16
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets2.5

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-09-302019-06-302019-03-31
Value14151516
Percentage of OperatingLeaseLiability100.0100.0100.0100.0
Percentage of Assets2.22.83.03.3

us-gaap:OperatingLeaseLiability us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

mcri:ShoppingCenterDrivewayLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3.83.93.94.04.04.14.24.24.3
Percentage of OperatingLeaseLiability0.00.026.40.00.00.026.626.326.6
Percentage of Assets0.60.60.60.70.70.70.70.80.9
Percentage of Assets mcri:ShoppingCenterDrivewayLease mcri:BiggestLittleInvestmentsLimitedPartnership0.00.00.00.00.00.00.00.00.0

mcri:ShoppingCenterSurfaceLotLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value1010101010101010
Percentage of OperatingLeaseLiability0.00.071.00.00.00.069.068.2
Percentage of Assets1.61.61.61.81.81.81.92.0
Percentage of Assets mcri:ShoppingCenterSurfaceLotLease mcri:BiggestLittleInvestmentsLimitedPartnership0.00.00.00.00.00.00.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets3.4

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value7869000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets1.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-312008-12-31
Value401379368353340344341332321310301292280269266260248239233225216208203195188181176172168165163160153145140139134132130129122112105
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets60.157.154.859.057.057.955.958.960.262.566.268.775.278.580.280.781.379.979.279.076.975.674.273.773.172.170.171.169.468.567.066.363.159.056.856.254.075.472.775.968.20.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value383634373635353332313029282726232222303433313028
Percentage of StockholdersEquity9.79.79.410.610.610.410.310.110.110.110.010.110.110.210.110.211.113.018.924.425.425.726.726.6
Percentage of Assets5.85.65.16.36.06.05.86.06.16.36.66.97.68.08.18.18.39.112.613.818.517.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1910.1909630.1909630.1909630.1909630.1909630.190963
Percentage of StockholdersEquity0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value368350342326316320318312303293286279268259257231207186172154145139131126
Percentage of StockholdersEquity91.992.293.092.592.993.293.493.994.494.795.295.595.796.396.699.2101.7105.5105.3109.8111.6113.7116.6119.6
Percentage of Assets55.352.750.954.652.953.952.155.356.859.263.065.672.075.577.578.675.574.070.662.381.177.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-6.5-7.606-8.872-11.117-12.103-12.349-12.777-13.602-14.527-15.072-15.876-16.494-16.501-17.658-18.123-22.158-26.404-32.97
Percentage of StockholdersEquity-1.6-2.0-2.4-3.1-3.6-3.6-3.7-4.1-4.5-4.9-5.3-5.6-5.9-6.6-6.8-9.5-12.9-18.6
Percentage of Assets-1.0-1.1-1.3-1.9-2.0-2.1-2.1-2.4-2.7-3.0-3.5-3.9-4.4-5.1-5.5-7.5-9.6-13.1
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0191000.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0190960.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value383634373635353332313029282726262424232222222223222322222225303032343434333333323231
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.85.65.16.36.06.05.86.06.16.36.66.97.68.08.18.18.18.18.18.18.08.28.38.78.99.29.19.49.310.512.612.613.514.013.813.713.519.018.519.218.917.6

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value368350342326316320318312303293286279268259257253244236231225217211207202195190186182178175172170164158154153149147145145145139
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets55.352.750.954.652.953.952.155.356.859.263.065.672.075.577.578.580.079.078.679.277.476.675.576.375.975.874.075.473.872.670.670.368.064.562.361.959.983.981.185.084.777.5

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1247000.01280000.0897000.0981000.0873000.01027000.01003000.0915000.0902000.0825000.0566000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1247000.01280000.0897000.0981000.0873000.01027000.01003000.0915000.0902000.0825000.0566000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value33211229-2.551-7.466151618131316151314167.9921014
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.129.220.848.9-16.8-14.624.624.929.022.923.025.725.823.226.221.811.415.826.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-5977000.0-5930000.0-10046000.0-13779000.0-8853000.0-13715000.0-24226000.0-37095000.0-37465000.0-36133000.0-43227000.0-41261000.0-28447000.0-12810000.0-12379000.0-13840000.0-8312000.0-12155000.0-5070000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.1-7.9-17.2-23.0-58.4-26.9-39.0-56.6-59.7-61.5-72.3-64.1-47.5-22.8-22.1-18.3-11.8-18.6-9.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-30
Value-23.219-20.091-4.329-23.31740232532
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-23.8-26.8-7.4-38.965.135.642.250.2

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-55000.0293000.0298000.0197000.0135000.0134000.0135000.0134000.0135000.0134000.0135000.0134000.0134000.0135000.0135000.0134000.0135000.0134000.0135000.0122000.077000.076000.0109000.077000.076000.076000.076000.077000.076000.076000.076279.076280.076280.076279.076280.076279.044233.0107680.065679.064394.064396.064394.064395.064395.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value9.369.5145.783.8913.8333.823.8913.6863.6953.6033.5363.6513.7383.6923.7353.7223.7693.9063.7013.6443.73.7763.9184.1084.1314.324.184.634.6944.0655183.5491064.3798734.6434354.3683134.6470024.2602053.3750843.2345393.3145983.4360153.3943863.3614123.3942583.21439
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1432000.0703000.0373000.04691000.012000.0-10458000.05888000.0-352000.01979000.0-1660000.02307000.01464000.0-1307000.0534000.0-58000.01066000.0-215000.0-1224000.01362000.0-644000.02000.01253000.0-1387000.01700000.0175000.0-1674000.062000.0-51000.0559000.0-1303000.0599750.0-2704.0-283350.0290310.0-1046900.0-1366100.03116800.0-1602200.0774380.0-319230.0541960.0-2520200.03244000.014423.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value935000.04025000.0-1463000.0-439000.01527000.0-1188000.0-1160000.0379000.01066000.0-1378000.0-127000.01976000.0
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-891000.0-855000.0475000.0354000.0105000.0154000.02195000.0840000.083000.0-75000.0368000.024000.056000.0-91000.0225000.0-81000.0287000.0-193000.0290000.0-91000.060000.0-43000.0193000.0100000.0-266000.08000.0230000.0190000.032000.0-281000.0215140.0189530.0-94392.0-17936.0243600.0-126570.0204720.0-197060.0257770.0-58489.091193.0-9177.083599.0108580.0
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value33211229-2.551-7.466151618131316151314167.9921014
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.129.220.848.9-16.8-14.624.624.929.022.923.025.725.823.226.221.811.415.826.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value188.1541510-4.3472.026.1969.3269.2797.0157.259109.2396.7414.3979.037.2394.8726.477.8345.6954.575
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.610.926.117.9-28.74.010.014.214.811.912.116.915.412.07.812.010.37.511.613.710.49.2

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value188.15410-4.3472.029.3269.2797.015109.2396.741
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.610.917.9-28.74.014.214.811.916.915.412.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312011-06-302010-06-30
Value188.1541510-4.3472.026.1969.3269.2797.0157.259109.2396.7414.3979.037.2394.8726.473.5581362.660331
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.610.926.117.9-28.74.010.014.214.811.912.116.915.412.07.812.010.37.511.69.67.4

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1247000.01280000.01104000.0569000.01309000.0873000.02311000.02243000.01689000.01960000.01271000.01185000.01897000.01115000.01892000.03036000.01201000.0962000.0698000.0433000.0423000.0127000.0606000.0318000.0329000.0291000.0349000.0301000.0313000.0263000.0403710.0294380.0286390.0235860.0429720.0352900.0316870.0268480.0380680.0361130.0412960.0464880.0519710.0320710.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-5977000.0-5930000.0-10046000.0-13779000.0-8853000.0-13715000.0-24226000.0-37095000.0-37465000.0-36133000.0-43227000.0-41261000.0-28447000.0-12810000.0-12379000.0-13840000.0-8312000.0-12155000.0-5070000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.1-7.9-17.2-23.0-58.4-26.9-39.0-56.6-59.7-61.5-72.3-64.1-47.5-22.8-22.1-18.3-11.8-18.6-9.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.7786.42758127.32510193137383546361813168.203126.4754.8185.98.92811117.4227.788.73.5214.5384.964.1804432.8780142.9464662.3955422.374562.8521133.6585391.4437039.7605421.3655061.0897421.3760532.8741591.354768
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-30
Value-23.219-20.091-4.329-23.31740232532
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-23.8-26.8-7.4-38.965.135.642.250.2

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-30
Value2.063-7.254423
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value25224.563153.75.10.45.5-3.04.3-0.24.3-2.95.50.04.92.58.57.09.34.38.13.245.72.55.05.06.64.75.8
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:CreditFacility

us-gaap:DebtInstrumentInterestRateStatedPercentage

mcri:TermLoanFacility


Debt
Period End2020-12-31
Value2.75
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations mcri:TermLoanFacility0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-222017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2.615.60.2660.0430.0001-0.0030.0030.196-0.00040.0090.1920.2050.210.0197-0.0190.010.346-0.0026-0.0010.0030.353-0.00210.00100.353-0.0488-0.0080.0340.3510.0129-0.0030.0060.3560.0076-0.0020.0060.350.0111-0.002
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value35.0129.4926.2121.0917.12
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:Range, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

srt:Maximum, us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value85.6859.0747.8146.7329.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice244.7200.3182.4221.6169.4

srt:Minimum, us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value43.0944.5539.8245.3228.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice123.1151.1151.9214.9163.7

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-31
Value13
Percentage of DeferredTaxLiabilities100.0

mcri:AdjustmentsToAdditionalPaidInCapitalCapitalContribution

mcri:AdjustmentsToAdditionalPaidInCapitalCapitalContribution


Adjustments
Period End2020-09-30
Value78000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalCapitalContribution100.0

mcri:AdjustmentsToAdditionalPaidInCapitalCapitalContribution us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-30
Value78000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalCapitalContribution100.0

mcri:ConversionOfLongTermDepositToShortTermDeposits

mcri:ConversionOfLongTermDepositToShortTermDeposits


Conversion
Period End2020-12-31
Value0
Percentage of ConversionOfLongTermDepositToShortTermDeposits0.0

mcri:EffectOfDilutiveStockOptionsPerShareAmount

mcri:EffectOfDilutiveStockOptionsPerShareAmount


Effect
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302013-12-312013-09-302013-06-302012-09-30
Value-0.03-0.02-0.02-0.02-0.01-0.01-0.03-0.02-0.02-0.02-0.02-0.01-0.01-0.010-0.01-0.01-0.01-0.01-0.01-0.010-0.01-0.02-0.01-0.01
Percentage of EffectOfDilutiveStockOptionsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

mcri:ExpenseDueToCovid19Pandemic

mcri:ExpenseDueToCovid19Pandemic


Expense
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value0100000.00400000.0300000.0
Percentage of ExpenseDueToCovid19Pandemic0.0100.00.0100.0100.0

mcri:IncreaseDecreaseInNonCashOperatingLeaseExpense

mcri:IncreaseDecreaseInNonCashOperatingLeaseExpense


Increase
Period End2021-06-302021-03-31
Value-5000.0-4000.0
Percentage of IncreaseDecreaseInNonCashOperatingLeaseExpense100.0100.0

mcri:LegislationLobbingExpenses

mcri:LegislationLobbingExpenses


Legislation
Period End2020-12-312020-09-302020-06-30
Value0500000.0500000.0
Percentage of LegislationLobbingExpenses0.0100.0100.0

mcri:PercentageOfPermittedOccupancyCapacity us-gaap:UnusualOrInfrequentItem

mcri:PercentageOfPermittedOccupancyCapacity

mcri:Covid19


Percentage
Period End2020-12-312020-11-232020-11-12
Value25.050.050.0
Percentage of PercentageOfPermittedOccupancyCapacity100.0100.0100.0

mcri:ProceedsFromPaymentsForConstructionPayable

mcri:ProceedsFromPaymentsForConstructionPayable


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-0.2120.49748-1.707-1.552-2.876-5.276-5.998-0.4342.084-7.8495.6168.1685.3941.0742.248-0.1940.091.392-0.193-0.4670.466-2.286
Percentage of ProceedsFromPaymentsForConstructionPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:RecoveriesForBadDebts

mcri:RecoveriesForBadDebts


Recoveries
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-29000.030000.0-76000.0-145000.0-20000.0-50000.026000.0-66000.0-46000.0-13000.032000.0
Percentage of RecoveriesForBadDebts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value985000.01011000.0872000.0708000.0775000.0690000.0932000.0811000.0792000.0723000.0662000.0713000.0652000.0447000.0466000.0370000.0320000.0302000.0455000.0281000.0275000.082000.0394000.0207000.0214000.0189000.0227000.0196000.0204000.0171000.0262410.0191350.0186150.0153310.0279320.0229380.0205960.0174520.0229870.0235560.0268420.0
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value4.153-4.167-2.216-7.794-1.038-21.181312.5622.709-6.645-4.2327.561
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

srt:Maximum, mcri:FourthAmendedCreditFacility, us-gaap:SubsequentEvent


Debt
Period End2021-04-30
Value1.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

srt:Minimum, mcri:FourthAmendedCreditFacility, us-gaap:SubsequentEvent


Debt
Period End2021-04-30
Value0
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:CreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate

srt:Maximum, mcri:FourthAmendedCreditFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-04-30
Value2.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1200.0

srt:Minimum, mcri:FourthAmendedCreditFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-04-30
Value1.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

us-gaap:DebtInstrumentPeriodicPaymentPrincipal us-gaap:CreditFacility

us-gaap:DebtInstrumentPeriodicPaymentPrincipal

mcri:TermLoanFacility


Debt
Period End2021-03-312020-09-03
Value20200
Percentage of DebtInstrumentPeriodicPaymentPrincipal100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-31
Value0.00.001
Percentage of DeferredIncomeTaxesAndTaxCredits0.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value262000.0269000.0232000.0189000.0206000.0183000.0248000.0216000.0211000.0192000.0176000.0189000.0173000.0119000.0251000.0199000.0173000.0163000.0243000.0152000.0148000.045000.0212000.0111000.0115000.0102000.0122000.0105000.0110000.092000.0141300.0103030.0100240.082551.0150400.0123520.0110900.093970.0150810.0125560.0144540.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets

us-gaap:GainLossOnDispositionOfAssets


Gain
Period End2020-12-312020-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302012-12-312012-09-302011-12-312011-09-302010-12-312010-09-30
Value-58000.000-8000.000-9000.0-5000.0-607000.0-56000.0-11000.002000.018000.0-94000.002150.0-7921.00-3430000.0-183810.00
Percentage of GainLossOnDispositionOfAssets100.00.00.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.00.0

us-gaap:HostingArrangementServiceContractImplementationCostExpenseAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:HostingArrangementServiceContractImplementationCostExpenseAmortization

mcri:CloudComputingArrangementIntangibleAssets


Hosting
Period End2020-12-31
Value622000.0
Percentage of HostingArrangementServiceContractImplementationCostExpenseAmortization100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value4735000.02462000.071000.09106000.0-2680000.0-5901000.01369000.01702000.01464000.0-1537000.01182000.01057000.01075000.0-2467000.02293000.02060000.0-455000.0-2274000.02497000.0707000.0113000.0-1395000.01881000.01495000.0-175000.0-655000.01322000.01034000.0-689000.0-517000.0688220.0844750.0-1897000.0705270.0463920.02285100.0-3137500.0552790.0627540.01086500.0-1500200.0177200.01336600.02027400.0
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1.68-1.51126-2.6821.134-0.0914.321-1.913-0.796-1.7060.37-0.5510.188-1.7361.149-0.7843.955-2.72-0.109
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidExpense

us-gaap:IncreaseDecreaseInPrepaidExpense


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-239000.0-1071000.01284000.02786000.0-1978000.0-845000.0650000.01139000.0-242000.0-817000.0897000.0433000.0-335000.0-99000.013000.0724000.0-238000.0-374000.0206000.0512000.073000.0294000.0-395000.0641000.0-272000.0315000.0525000.0208000.0-480000.0938000.0-69316.0415020.0-881410.0729500.0-168870.062775.0-772760.0425390.0-453230.0-388180.0197770.0489180.0102670.0-654610.0
Percentage of IncreaseDecreaseInPrepaidExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value870000.0802000.022000.0643000.0716000.0-9000.0653000.0669000.0682000.0-28000.0745000.0748000.0940000.0111000.0782000.0681000.0544000.026000.0382000.0320000.0329000.04000.0364000.0408000.0377000.0-31000.0216000.0316000.0723000.087000.0791000.0510000.0128000.01000.093000.0110000.0136000.04000.096000.086000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized

us-gaap:InterestCostsCapitalized


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.41.8161.81.41.81.61.61.41.2
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:Range

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

srt:Maximum


Line
Period End2021-06-302021-03-312020-12-31
Value-0.250.5750
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage100.0100.00.0

srt:Minimum


Line
Period End2021-06-302021-03-312020-12-31
Value-0.1750.350
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage70.060.90.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:Range, us-gaap:SubsequentEventType

srt:Maximum, us-gaap:SubsequentEvent


Line
Period End2021-04-30
Value0.325
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage0.0

srt:Minimum, us-gaap:SubsequentEvent


Line
Period End2021-04-30
Value0.175
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage0.0

us-gaap:OperatingLeaseExpense us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:OperatingLeaseExpense

mcri:ShoppingCenterDrivewayLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5000.08000.06000.08000.01000.08000.09000.07000.04000.09000.07000.06000.04000.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:ShoppingCenterSurfaceLotLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1000.07000.07000.013000.007000.013000.06000.01000.012000.06000.06000.01000.0
Percentage of OperatingLeaseExpense20.087.5116.7162.50.087.5144.485.725.0133.385.7100.025.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value300000.0400000.0300000.0400000.0300000.0400000.0400000.0400000.0332000.0368000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value812000.0800000.01801000.02448000.01157000.01305000.01373000.01115000.0188000.0436000.0
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRent us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:PaymentsForRent

mcri:RelatedPartyLeasesForBillboardAdvertisingStorageSpaceAndParkingLotSpace, srt:AffiliatedEntity


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value52000.042000.044000.027000.038000.036000.033000.048000.033000.036000.042000.035000.0
Percentage of PaymentsForRent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:ShoppingCenterDrivewayLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value101000.0101000.0101000.0101000.0101000.0101000.0101000.094000.094000.094000.095000.094000.094000.0
Percentage of PaymentsForRent194.2240.5229.5374.1265.8280.6306.1195.8284.80.0263.9223.8268.6

mcri:ShoppingCenterSurfaceLotLease, mcri:BiggestLittleInvestmentsLimitedPartnership


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value174000.0174000.0173000.0174000.0174000.0174000.0173000.0174000.0174000.0174000.0173000.0174000.0174000.0
Percentage of PaymentsForRent334.6414.3393.2644.4457.9483.3524.2362.5527.30.0480.6414.3497.1

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


Payments
Period End2020-12-31
Value0
Percentage of PaymentsOfFinancingCosts0.0

us-gaap:PreOpeningCosts

us-gaap:PreOpeningCosts


Pre
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value900000.0900000.0200000.0800000.0923000.0953000.0188000.0400000.0
Percentage of PreOpeningCosts100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfProductiveAssets


Proceeds
Period End2020-12-312020-09-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302012-12-312012-09-302011-12-312011-09-302010-12-312010-09-30
Value6000.01000.00013000.0-4000.011000.0009000.02400.000000
Percentage of ProceedsFromSaleOfProductiveAssets100.0100.00.00.0100.0100.0100.00.00.0100.0100.00.00.00.00.00.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312014-12-312014-09-302013-12-312013-09-302012-12-312012-09-30
Value2.1842.4092.599-0.2980.0330.3186741.8120990.0396590.0
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value63000.0-39000.0122000.0-76000.066000.046000.013000.0-32000.0-49000.0115000.0-11000.048000.0-18000.066000.08000.018000.0160000.045000.028000.07000.0-28000.045000.05000.029000.0-156450.09745.0-49833.0-33783.0-92837.0-239330.0231070.093171.0166390.0452.0-32217.0-49830.034937.0335590.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1781000.02409000.01388000.0-306000.01215000.0686000.01045000.0283000.01071000.0550000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value675000.01143000.0402000.0-552000.0-428000.0290000.0141000.0241000.0276000.0-86000.085000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised37.947.429.0180.40.023.920.623.197.5-8.015.5

us-gaap:TreasuryStockCommon


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1106000.01266000.0986000.0246000.0428000.0925000.0545000.0804000.07000.01157000.0465000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised62.152.671.0-80.40.076.179.476.92.5108.084.5

us-gaap:WriteOffOfDeferredDebtIssuanceCost

us-gaap:WriteOffOfDeferredDebtIssuanceCost


Write
Period End2020-12-312020-09-30
Value0100000.0
Percentage of WriteOffOfDeferredDebtIssuanceCost0.0100.0

mcri:AccruedGamingTaxesCurrent

mcri:AccruedGamingTaxesCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value2774000.02999000.02788000.02607000.02588000.02396000.02198000.02046100.02150100.0466900.0
Percentage of AccruedGamingTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:AnnualBaseLimitationInternalRevenueCodeChangeOfOwnershipLimitationsAcquiredOperatingLossCarryforwardsAndTaxCreditCarryforwardAmount

mcri:AnnualBaseLimitationInternalRevenueCodeChangeOfOwnershipLimitationsAcquiredOperatingLossCarryforwardsAndTaxCreditCarryforwardAmount


Annual
Period End2020-12-31
Value1250000.0
Percentage of AnnualBaseLimitationInternalRevenueCodeChangeOfOwnershipLimitationsAcquiredOperatingLossCarryforwardsAndTaxCreditCarryforwardAmount100.0

mcri:BorrowingsUseLimitationRetainageCostPaymentForExpansionProjectMinimumamount us-gaap:CreditFacility

mcri:BorrowingsUseLimitationRetainageCostPaymentForExpansionProjectMinimumamount

mcri:FourthAmendedCreditFacility


Borrowings
Period End2020-09-30
Value51
Percentage of BorrowingsUseLimitationRetainageCostPaymentForExpansionProjectMinimumamount100.0

mcri:BuildingImprovements

mcri:BuildingImprovements


Building
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value33323131312626252525252424242424242424232320201918201515151111111111111111101010
Percentage of BuildingImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:Buildings

mcri:Buildings


Buildings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value471193193193193193193193193193193193193193191191191152152150150150150150150150150150150150150150150150150135135135139139
Percentage of Buildings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:DebtInstrumentCovenantConsolidatedLeverageRatio us-gaap:CreditFacility

mcri:DebtInstrumentCovenantConsolidatedLeverageRatio

mcri:FourthAmendedCreditFacility


Debt
Period End2021-06-302021-03-31
Value1.52.1
Percentage of DebtInstrumentCovenantConsolidatedLeverageRatio100.0100.0

us-gaap:RevolvingCreditFacility


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value2.62.25.23.5
Percentage of DebtInstrumentCovenantConsolidatedLeverageRatio0.00.00.00.0

mcri:DebtInstrumentCovenantConsolidatedLeverageRatio us-gaap:Range, us-gaap:CreditFacility

srt:Maximum, mcri:FourthAmendedCreditFacility


Debt
Period End2021-06-302021-03-31
Value4.04.75
Percentage of DebtInstrumentCovenantConsolidatedLeverageRatio266.7226.2

srt:Maximum, us-gaap:RevolvingCreditFacility


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value4.754.753.53.5
Percentage of DebtInstrumentCovenantConsolidatedLeverageRatio0.00.00.00.0

mcri:DebtInstrumentCovenantConsolidatedLeverageRatio us-gaap:Range, us-gaap:SubsequentEventType

srt:Maximum, us-gaap:SubsequentEvent


Debt
Period End2021-04-30
Value4.0
Percentage of DebtInstrumentCovenantConsolidatedLeverageRatio0.0

mcri:DebtInstrumentCovenantFixedChargeCoverageRatio us-gaap:CreditFacility

mcri:DebtInstrumentCovenantFixedChargeCoverageRatio

mcri:FourthAmendedCreditFacility


Debt
Period End2021-06-302021-03-31
Value5.24.6
Percentage of DebtInstrumentCovenantFixedChargeCoverageRatio100.0100.0

us-gaap:RevolvingCreditFacility


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value5.69.11.73.5
Percentage of DebtInstrumentCovenantFixedChargeCoverageRatio0.00.00.00.0

mcri:DebtInstrumentMandatoryPrincipalPaymentDueInNextTwelveMonths

mcri:DebtInstrumentMandatoryPrincipalPaymentDueInNextTwelveMonths


Debt
Period End2020-12-31
Value12
Percentage of DebtInstrumentMandatoryPrincipalPaymentDueInNextTwelveMonths100.0

mcri:DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards

mcri:DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2440000.01444000.01761000.02219000.03295000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards100.0100.0100.0100.0100.0

mcri:DeferredTaxAssetsRightOfUseAssets

mcri:DeferredTaxAssetsRightOfUseAssets


Deferred
Period End2020-12-312019-12-31
Value3425000.03457000.0
Percentage of DeferredTaxAssetsRightOfUseAssets100.0100.0

mcri:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsBadDebtReserves

mcri:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsBadDebtReserves


Deferred
Period End2020-12-31
Value26000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsBadDebtReserves100.0

mcri:DeferredTaxLiabilitiesBaseStock

mcri:DeferredTaxLiabilitiesBaseStock


Deferred
Period End2020-12-31
Value249000.0
Percentage of DeferredTaxLiabilitiesBaseStock100.0

mcri:DeferredTaxLiabilitiesLeaseRightOfUseLiability

mcri:DeferredTaxLiabilitiesLeaseRightOfUseLiability


Deferred
Period End2020-12-312019-12-31
Value3422000.03454000.0
Percentage of DeferredTaxLiabilitiesLeaseRightOfUseLiability100.0100.0

mcri:FederalDeductionOnDeferredStateTaxes

mcri:FederalDeductionOnDeferredStateTaxes


Federal
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value27000.070000.098000.0160000.0366000.0356000.0360000.0119000.0
Percentage of FederalDeductionOnDeferredStateTaxes100.0100.0100.0100.0100.0100.0100.0100.0

mcri:LineOfCreditFacilityAdditionalBorrowingCapacity us-gaap:CreditFacility

mcri:LineOfCreditFacilityAdditionalBorrowingCapacity

us-gaap:RevolvingCreditFacility


Line
Period End2020-09-03
Value75
Percentage of LineOfCreditFacilityAdditionalBorrowingCapacity100.0

mcri:LineOfCreditFacilityAdditionalBorrowingCapacity us-gaap:CreditFacility, us-gaap:UnusualOrInfrequentItem

mcri:FourthAmendedCreditFacility, mcri:Covid19


Line
Period End2020-09-03
Value75
Percentage of LineOfCreditFacilityAdditionalBorrowingCapacity100.0

us-gaap:RevolvingCreditFacility, mcri:Covid19


Line
Period End2020-09-03
Value75
Percentage of LineOfCreditFacilityAdditionalBorrowingCapacity100.0

mcri:MinimumOperationalLiquidityToBeMaintained us-gaap:CreditFacility

mcri:MinimumOperationalLiquidityToBeMaintained

mcri:FourthAmendedCreditFacility


Minimum
Period End2020-09-30
Value25
Percentage of MinimumOperationalLiquidityToBeMaintained100.0

mcri:OperationalLiquidityAmount us-gaap:CreditFacility

mcri:OperationalLiquidityAmount

mcri:FourthAmendedCreditFacility


Operational
Period End2020-09-30
Value76
Percentage of OperationalLiquidityAmount100.0

mcri:OperationalLiquidityThresholdOneAmount us-gaap:CreditFacility

mcri:OperationalLiquidityThresholdOneAmount

mcri:FourthAmendedCreditFacility


Operational
Period End2020-09-30
Value24
Percentage of OperationalLiquidityThresholdOneAmount100.0

mcri:ProgressiveSlotMachineAndOtherGamingAccrualsCurrent

mcri:ProgressiveSlotMachineAndOtherGamingAccrualsCurrent


Progressive
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1616169.935109.6548.4576.4128166.3131253.240818
Percentage of ProgressiveSlotMachineAndOtherGamingAccrualsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mcri:ShareReserve us-gaap:PlanName

mcri:ShareReserve

mcri:EquityIncentivePlan2014


Share
Period End2020-12-31
Value1167200.0
Percentage of ShareReserve100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3847000.05558000.06985000.07188000.05411000.04180000.03364000.02999500.03185600.03612700.0
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent us-gaap:ProductOrService

mcri:HotelReceivables


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value510000.01445000.01773000.01719000.0873000.0
Percentage of AccountsReceivableGrossCurrent13.326.025.423.916.1

mcri:OtherProduct


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value636000.0514000.0304000.0444000.0297000.0264000.0854000.0359030.0399980.0309750.0
Percentage of AccountsReceivableGrossCurrent16.59.24.46.25.56.325.412.012.68.6

us-gaap:Casino


Accounts
Period End2020-12-312019-12-312018-12-312017-12-31
Value2701000.03599000.04908000.05025000.0
Percentage of AccountsReceivableGrossCurrent70.264.870.369.9

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent


Accrued
Period End2021-06-302021-03-312020-06-302020-03-31
Value1500000.0600000.0300000.0200000.0
Percentage of AccruedProfessionalFeesCurrentAndNoncurrent100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value111000.0100000.0245000.0263000.0375000.0451000.0317000.0370990.0728720.01312800.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConstructionPayableCurrent

us-gaap:ConstructionPayableCurrent


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value5050491.3933.14.6527.528121819172519115.8234.7492.5012.6952.6051.2131.4061.8731.4073.6932.2322.2011.79
Percentage of ConstructionPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentAnnualPrincipalPayment us-gaap:CreditFacility

us-gaap:DebtInstrumentAnnualPrincipalPayment

mcri:TermLoanFacility


Debt
Period End2020-09-03
Value10.0
Percentage of DebtInstrumentAnnualPrincipalPayment100.0

us-gaap:DebtInstrumentAnnualPrincipalPayment us-gaap:StatementScenario, us-gaap:DebtInstrument

mcri:NextTwelveMonths, mcri:TermLoan


Debt
Period End2020-09-03
Value15
Percentage of DebtInstrumentAnnualPrincipalPayment150.0

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:UnusualOrInfrequentItem

us-gaap:DebtInstrumentFaceAmount

mcri:FourthAmendedCreditFacility, mcri:TermLoan, mcri:Covid19


Debt
Period End2020-09-03
Value200
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument

mcri:TermLoan


Debt
Period End2020-09-03
Value200
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsGross us-gaap:CreditFacility

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsGross

mcri:FourthAmendedCreditFacility


Debt
Period End2021-06-302021-03-31
Value2600000.02500000.0
Percentage of DebtIssuanceCostsLineOfCreditArrangementsGross100.0100.0

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet

us-gaap:DebtIssuanceCostsLineOfCreditArrangementsNet


Debt
Period End2021-06-302021-03-312020-12-312020-09-30
Value2600000.02500000.02800000.03100000.0
Percentage of DebtIssuanceCostsLineOfCreditArrangementsNet100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNoncurrentGross

us-gaap:DeferredFinanceCostsNoncurrentGross


Deferred
Period End2020-12-31
Value2800000.0
Percentage of DeferredFinanceCostsNoncurrentGross100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value130000.0130000.0130000.02683000.02683000.02683000.02683000.04027000.04027000.04027000.0
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value235.771.952.113.8344.1154.3074.4868185.5420516.602973
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsCharitableContributionCarryforwards

us-gaap:DeferredTaxAssetsCharitableContributionCarryforwards


Deferred
Period End2020-12-31
Value63000.0
Percentage of DeferredTaxAssetsCharitableContributionCarryforwards100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value108.4535.9775.65411111010126.106836
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-31
Value33000.05000.0
Percentage of DeferredTaxAssetsOther100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value580000.0623000.0466000.0555000.01113000.01033000.0744000.0759520.0700190.0440270.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3011000.02613000.02018000.01434000.02198000.02039000.02156000.04621400.04595100.04126500.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value486000.0307000.0679000.0512000.01991000.01695000.01663000.01127100.01372600.01080600.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value86000.0341000.0600000.0855000.01811000.02235000.02649000.03069900.04044100.0
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1234000.01354000.01067000.0890000.01365000.01279000.0984000.0906940.0922740.0785330.0
Percentage of DeferredTaxLiabilitiesPrepaidExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-31
Value180.519
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0

us-gaap:DerivativeFloorInterestRate us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DerivativeFloorInterestRate

us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR


Derivative
Period End2021-04-30
Value0.5
Percentage of DerivativeFloorInterestRate100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value9833000.08772000.08639000.09838000.08341000.07756000.05813000.06096000.05248400.04159100.0
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value10
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312012-12-312012-09-302012-06-30
Value108.9527.7866.6215.4551.8751.1860.497
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value497000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value104000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value124000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value124000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value124000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312012-12-312012-09-302012-06-30
Value1110101010121212
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-31
Value10
Percentage of FiniteLivedIntangibleAssetsGross94.5

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312018-12-312018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302013-12-312011-09-302010-12-31
Value2523241.2280.0940.1850.2790.460.2722.0080.8591.6430.4080.5171.8390.6110.9791.9371.1390.20.6080.7996810.099202
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value14000.0125000.0126000.06000.03000.02000.02000.056630.09355.088542.0
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LandImprovements

us-gaap:LandImprovements


Land
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value9847000.07856000.07842000.07842000.07842000.07742000.07719000.07645000.07645000.07281000.07281000.07281000.07249000.06946000.06914000.06914000.06914000.06701000.06701000.06701000.06701000.06701000.06701000.06701000.06701000.06701000.06562000.06562000.06561700.06561700.06561700.06561700.06561700.06389300.06389300.06359300.06359300.04026200.04026200.03892000.0
Percentage of LandImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value1432000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LineOfCredit us-gaap:CreditFacility

us-gaap:LineOfCredit

mcri:TermLoanFacility


Line
Period End2020-12-312020-09-30
Value182185
Percentage of LineOfCredit100.0100.0

us-gaap:RevolvingCreditFacility


Line
Period End2020-12-312019-12-31
Value182196
Percentage of LineOfCredit100.00.0

us-gaap:LineOfCredit us-gaap:DebtInstrument

mcri:TermLoan


Line
Period End2021-06-302021-03-31
Value135160
Percentage of LineOfCredit0.00.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

mcri:FourthAmendedCreditFacility


Line
Period End2020-09-03
Value270
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

mcri:NewRevolvingCreditFacility


Line
Period End2020-09-03
Value70
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity25.9

mcri:TermLoanFacility


Line
Period End2020-09-03
Value200
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity74.1

us-gaap:RevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-09-032020-06-302020-03-312019-12-312016-07-20
Value75757575250757550250
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity0.00.00.00.092.60.00.00.00.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:UnusualOrInfrequentItem

mcri:FourthAmendedCreditFacility, mcri:Covid19


Line
Period End2020-09-032020-09-02
Value270241
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.00.0

us-gaap:RevolvingCreditFacility, mcri:Covid19


Line
Period End2020-09-03
Value70
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity25.9

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility


Line
Period End2021-06-302020-12-312020-09-302020-06-302020-03-31
Value7070703450
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0

us-gaap:LinesOfCreditCurrent

us-gaap:LinesOfCreditCurrent


Lines
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value17151210.0252220
Percentage of LinesOfCreditCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths us-gaap:CreditFacility

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

mcri:TermLoanFacility


Long
Period End2021-06-302020-09-30
Value1710.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths us-gaap:DebtInstrument

mcri:TermLoan


Long
Period End2021-06-302021-03-31
Value1715
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.00.0

us-gaap:LongTermDebtPercentageBearingVariableInterestRate us-gaap:StatementScenario, us-gaap:CreditFacility

us-gaap:LongTermDebtPercentageBearingVariableInterestRate

mcri:PeriodFromDecember312020ToSeptember302021, mcri:TermLoanFacility


Long
Period End2020-09-03
Value1.25
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0

mcri:PeriodFromDecember312021AndThereafter, mcri:TermLoanFacility


Long
Period End2020-09-03
Value2.5
Percentage of LongTermDebtPercentageBearingVariableInterestRate200.0

us-gaap:LongTermDebtPercentageBearingVariableInterestRate us-gaap:StatementScenario, us-gaap:DebtInstrument

mcri:PeriodFromDecember312020ToSeptember302021, mcri:TermLoan


Long
Period End2020-09-03
Value1.25
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0

mcri:PeriodFromDecember312021AndThereafter, mcri:TermLoan


Long
Period End2020-09-03
Value2.5
Percentage of LongTermDebtPercentageBearingVariableInterestRate200.0

us-gaap:LongTermLineOfCredit

us-gaap:LongTermLineOfCredit


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-30
Value11414216717118117317515513211094693626262626262635
Percentage of LongTermLineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermLineOfCredit us-gaap:CreditFacility

mcri:FourthAmendedCreditFacility


Long
Period End2021-06-302021-03-31
Value135160
Percentage of LongTermLineOfCredit117.5112.3

us-gaap:OperatingLossCarryforwards us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

mcri:RivieraBlackHawkInc, us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312015-12-312014-12-312013-12-31
Value15192026
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthorityName

mcri:RivieraBlackHawkInc, us-gaap:InternalRevenueServiceIRS


Operating
Period End2020-12-31
Value2.4
Percentage of OperatingLossCarryforwards15.1

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3315171819
Percentage of OperatingLossCarryforwards213.20.00.00.00.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthorityName

us-gaap:InternalRevenueServiceIRS


Operating
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.42.43.64.8
Percentage of OperatingLossCarryforwards15.10.00.00.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7083000.07322000.08393000.07109000.04323000.05393000.06238000.05588000.04449000.04691000.05508000.04611000.04178000.04513000.04612000.04599000.03875000.04113000.04487000.04281000.03769000.03696000.03402000.04705000.04064000.04336000.04021000.03496000.03288000.03768000.02830200.02899500.02484500.03365900.02636400.02805300.02742500.06624300.06198900.06652100.03240300.02553300.0
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value9.99.79.8109.4
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-31
Value23.28
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:EmployeeStockOption


Share
Period End2020-12-31
Value57
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:EmployeeStockOption


Sharebased
Period End2020-12-31
Value38
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:EmployeeStockOption


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value14.4912.3710.838.075.39
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2020-12-31
Value400000.0
Percentage of TaxCreditCarryforwardAmount100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:BusinessAcquisition, us-gaap:IncomeTaxAuthorityName

mcri:RivieraBlackHawkInc, us-gaap:InternalRevenueServiceIRS


Tax
Period End2020-12-31
Value400000.0
Percentage of TaxCreditCarryforwardAmount100.0

us-gaap:TreasuryStockCommonValue

us-gaap:TreasuryStockCommonValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value6.57.6068.87211121212131415151616171819202122
Percentage of TreasuryStockCommonValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:AllowanceForCreditLoss


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value111000.0100000.0245000.0263000.0375000.0451000.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


COGS Ratio
us-gaap:ProductOrService
(None,)
C O G S  Ratious-gaap: Product Or Service
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService
(None,)
Cost Of Goods And Services Soldus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
(None, 'mcri:BiggestLittleInvestmentsLimitedPartnership')
Operating Lease Right Of Use Assetus-gaap: Related Party Transaction, us-gaap: Related Party Transactions By Related Party
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components