XML 18 R37.htm IDEA: XBRL DOCUMENT v2.4.1.9
SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL STATEMENT INFORMATION - Statements of Cash Flows (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Cash flows provided by (used in) operating activities:    
Net income (loss) $ 14,397us-gaap_ProfitLoss $ (67,390)us-gaap_ProfitLoss
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:    
Depreciation and amortization 20,053us-gaap_DepreciationAndAmortization 19,118us-gaap_DepreciationAndAmortization
Relinquishment liability reassessment 56mtga_RelinquishmentLiabilityReassessment 0mtga_RelinquishmentLiabilityReassessment
Accretion of discount to the relinquishment liability 227mtga_AccretionOfDiscountToRelinquishmentLiability 551mtga_AccretionOfDiscountToRelinquishmentLiability
Cash paid for accretion of discount to the relinquishment liability (276)mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability (621)mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
Loss on early extinguishment of debt 0mtga_GainLossonEarlyExtinguishmentorExchangeofDebt 58,287mtga_GainLossonEarlyExtinguishmentorExchangeofDebt
Payments of tender offer costs and discounts 0mtga_PaymentsOfTenderOfferCosts (48,155)mtga_PaymentsOfTenderOfferCosts
Amortization of debt issuance costs and accretion of bond discounts 1,911us-gaap_AmortizationOfFinancingCostsAndDiscounts 2,326us-gaap_AmortizationOfFinancingCostsAndDiscounts
Provision for losses on receivables 794us-gaap_ProvisionForDoubtfulAccounts 802us-gaap_ProvisionForDoubtfulAccounts
(Gain) loss on disposition of assets 739us-gaap_GainLossOnDispositionOfAssets (1)us-gaap_GainLossOnDispositionOfAssets
Loss from unconsolidated affiliates 778us-gaap_IncomeLossFromEquityMethodInvestments 696us-gaap_IncomeLossFromEquityMethodInvestments
Inter-company transactions 0mtga_PaymentsforProceedsfromIntercompanyOperatingActivities 0mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
Changes in operating assets and liabilities:    
(Increase) decrease in receivables (1,047)us-gaap_IncreaseDecreaseInAccountsReceivable 3,376us-gaap_IncreaseDecreaseInAccountsReceivable
Increase in inventories (1,267)us-gaap_IncreaseDecreaseInInventories (1,192)us-gaap_IncreaseDecreaseInInventories
Increase in other assets (4,529)us-gaap_IncreaseDecreaseInOtherOperatingAssets (2,851)us-gaap_IncreaseDecreaseInOtherOperatingAssets
Increase (decrease) in trade payables (10,780)us-gaap_IncreaseDecreaseInAccountsPayableTrade 4,739us-gaap_IncreaseDecreaseInAccountsPayableTrade
Increase in accrued interest 20,726us-gaap_IncreaseDecreaseInInterestPayableNet 9,338us-gaap_IncreaseDecreaseInInterestPayableNet
Increase in other liabilities 4,851us-gaap_IncreaseDecreaseInOtherOperatingLiabilities 8,273us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
Net cash flows provided by (used in) operating activities 46,633us-gaap_NetCashProvidedByUsedInOperatingActivities (12,704)us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows provided by (used in) investing activities:    
Purchases of property and equipment, net of change in construction payables (5,760)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (15,168)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Issuance of third-party loans and advances (336)mtga_IssuanceOfThirdPartyLoansAndAdvances (382)mtga_IssuanceOfThirdPartyLoansAndAdvances
Payments received on third-party loans 38mtga_PaymentsReceivedOnThirdPartyLoans 532mtga_PaymentsReceivedOnThirdPartyLoans
(Increase) decrease in restricted cash, net (1,784)us-gaap_IncreaseDecreaseInRestrictedCash 7,518us-gaap_IncreaseDecreaseInRestrictedCash
Proceeds from asset sales 27us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 5us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Investments in the New England Black Wolves (500)us-gaap_PaymentsForProceedsFromLimitedPartnership 0us-gaap_PaymentsForProceedsFromLimitedPartnership
Investments in unconsolidated affiliates 0us-gaap_PaymentsToAcquireEquityMethodInvestments (29)us-gaap_PaymentsToAcquireEquityMethodInvestments
Inter-company transactions 0mtga_PaymentsforProceedsfromIntercompanyInvestingActivities 0mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
Net cash flows used in investing activities (8,315)us-gaap_NetCashProvidedByUsedInInvestingActivities (7,524)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows provided by (used in) financing activities:    
Repayments to Mohegan Tribe 0us-gaap_RepaymentsOfRelatedPartyDebt (1,375)us-gaap_RepaymentsOfRelatedPartyDebt
Repayments of other long-term debt (103)us-gaap_RepaymentsOfOtherLongTermDebt (190,935)us-gaap_RepaymentsOfOtherLongTermDebt
Principal portion of relinquishment liability payments (6,336)mtga_PrincipalPortionOfRelinquishmentLiabilityPayments (6,034)mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
Distributions to Mohegan Tribe (10,000)us-gaap_PaymentsOfDistributionsToAffiliates (10,000)us-gaap_PaymentsOfDistributionsToAffiliates
Payments of financing fees 0us-gaap_PaymentsOfDebtIssuanceCosts (12,437)us-gaap_PaymentsOfDebtIssuanceCosts
Payments on capital lease obligations (329)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations (558)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
Inter-company transactions 0us-gaap_ProceedsFromPaymentsForOtherFinancingActivities 0us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
Net cash flows provided by (used in) financing activities (13,239)us-gaap_NetCashProvidedByUsedInFinancingActivities 32,206us-gaap_NetCashProvidedByUsedInFinancingActivities
Net increase in cash and cash equivalents 25,079us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 11,978us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at beginning of period 49,108us-gaap_CashAndCashEquivalentsAtCarryingValue 63,624us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents at end of period 74,187us-gaap_CashAndCashEquivalentsAtCarryingValue 75,602us-gaap_CashAndCashEquivalentsAtCarryingValue
Credit Facility    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   (393,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit Facility | Bank Credit Facility - Term    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditFacilityTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
(393,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditFacilityTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit Facility | Prior Term Loan Facility    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
(222,103)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit Facility | Senior Secured Credit Facility - Revolving    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 107,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
56,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (103,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
(42,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit Facility | Senior Secured Credit Facility - Term Loan A    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
124,343us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (1,563)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit Facility | Senior Secured Credit Facility - Term Loan B    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
720,952us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (1,825)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit Facility | Line of Credit    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 113,051us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
78,794us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (110,134)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
(69,441)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Authority    
Cash flows provided by (used in) operating activities:    
Net income (loss) 14,766us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(67,255)us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:    
Depreciation and amortization 16,281us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
15,532us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Relinquishment liability reassessment 56mtga_RelinquishmentLiabilityReassessment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
 
Accretion of discount to the relinquishment liability 227mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
551mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Cash paid for accretion of discount to the relinquishment liability (276)mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(621)mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Loss on early extinguishment of debt   58,287mtga_GainLossonEarlyExtinguishmentorExchangeofDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Payments of tender offer costs and discounts   (48,155)mtga_PaymentsOfTenderOfferCosts
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Amortization of debt issuance costs and accretion of bond discounts 1,831us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,246us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Provision for losses on receivables 48us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
171us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(Gain) loss on disposition of assets 737us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(1)us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Loss from unconsolidated affiliates 86us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Inter-company transactions (3,586)mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(204)mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Changes in operating assets and liabilities:    
(Increase) decrease in receivables (1,337)us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,890us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Increase in inventories (1,095)us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(800)us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Increase in other assets (2,942)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(1,158)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Increase (decrease) in trade payables (6,888)us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,891us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Increase in accrued interest 19,893us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
10,447us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Increase in other liabilities 4,659us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,248us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net cash flows provided by (used in) operating activities 42,460us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(21,929)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Cash flows provided by (used in) investing activities:    
Purchases of property and equipment, net of change in construction payables (4,179)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(6,526)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Issuance of third-party loans and advances 0mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Payments received on third-party loans 38mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
532mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(Increase) decrease in restricted cash, net (36)us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(4)us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Proceeds from asset sales 27us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
5us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Investments in the New England Black Wolves 0us-gaap_PaymentsForProceedsFromLimitedPartnership
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
 
Investments in unconsolidated affiliates   0us-gaap_PaymentsToAcquireEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Inter-company transactions (5,287)mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,459mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net cash flows used in investing activities (9,437)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(3,534)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Cash flows provided by (used in) financing activities:    
Repayments to Mohegan Tribe   0us-gaap_RepaymentsOfRelatedPartyDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Repayments of other long-term debt (63)us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(190,927)us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Principal portion of relinquishment liability payments (6,336)mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(6,034)mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Distributions to Mohegan Tribe (10,000)us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(10,000)us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Payments of financing fees   (12,437)us-gaap_PaymentsOfDebtIssuanceCosts
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Payments on capital lease obligations (329)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(558)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Inter-company transactions 0us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net cash flows provided by (used in) financing activities (13,199)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
33,589us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net increase in cash and cash equivalents 19,824us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
8,126us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Cash and cash equivalents at beginning of period 33,939us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
44,060us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Cash and cash equivalents at end of period 53,763us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
52,186us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Authority | Credit Facility | Bank Credit Facility - Term    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   (393,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditFacilityTermLoanMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Authority | Credit Facility | Prior Term Loan Facility    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   (222,103)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Authority | Credit Facility | Senior Secured Credit Facility - Revolving    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 107,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
56,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (103,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
(42,000)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Authority | Credit Facility | Senior Secured Credit Facility - Term Loan A    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   124,343us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (1,563)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
 
Authority | Credit Facility | Senior Secured Credit Facility - Term Loan B    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   720,952us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (1,825)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
 
Authority | Credit Facility | Line of Credit    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 113,051us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
78,794us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments (110,134)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
(69,441)us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Total Guarantor Subsidiaries    
Cash flows provided by (used in) operating activities:    
Net income (loss) (4,493)us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (9,376)us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:    
Depreciation and amortization 3,527us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 3,421us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Relinquishment liability reassessment 0mtga_RelinquishmentLiabilityReassessment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]  
Accretion of discount to the relinquishment liability 0mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Cash paid for accretion of discount to the relinquishment liability 0mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Loss on early extinguishment of debt   0mtga_GainLossonEarlyExtinguishmentorExchangeofDebt
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Payments of tender offer costs and discounts   0mtga_PaymentsOfTenderOfferCosts
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Amortization of debt issuance costs and accretion of bond discounts 0us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Provision for losses on receivables 2us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (3)us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
(Gain) loss on disposition of assets 2us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Loss from unconsolidated affiliates 0us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Inter-company transactions 11,719mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 15,614mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Changes in operating assets and liabilities:    
(Increase) decrease in receivables 543us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 434us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Increase in inventories (172)us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (392)us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Increase in other assets (28)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (207)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Increase (decrease) in trade payables (4,026)us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 793us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Increase in accrued interest 0us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Increase in other liabilities 4,078us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 3,136us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Net cash flows provided by (used in) operating activities 11,152us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 13,420us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Cash flows provided by (used in) investing activities:    
Purchases of property and equipment, net of change in construction payables (1,334)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (1,423)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Issuance of third-party loans and advances 0mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Payments received on third-party loans 0mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
(Increase) decrease in restricted cash, net (1,748)us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (282)us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Proceeds from asset sales 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Investments in the New England Black Wolves 0us-gaap_PaymentsForProceedsFromLimitedPartnership
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]  
Investments in unconsolidated affiliates   0us-gaap_PaymentsToAcquireEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Inter-company transactions (7,236)mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (6,885)mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Net cash flows used in investing activities (10,318)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (8,590)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Cash flows provided by (used in) financing activities:    
Repayments to Mohegan Tribe   0us-gaap_RepaymentsOfRelatedPartyDebt
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Repayments of other long-term debt 0us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Principal portion of relinquishment liability payments 0mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Distributions to Mohegan Tribe 0us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 0us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Payments of financing fees   0us-gaap_PaymentsOfDebtIssuanceCosts
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Payments on capital lease obligations (19)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (6)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Inter-company transactions 3,838us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (2,148)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Net cash flows provided by (used in) financing activities 3,819us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] (2,154)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Net increase in cash and cash equivalents 4,653us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 2,676us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Cash and cash equivalents at beginning of period 14,767us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 18,655us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Cash and cash equivalents at end of period 19,420us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1] 21,331us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
[1]
Total Guarantor Subsidiaries | Credit Facility | Bank Credit Facility - Term    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditFacilityTermLoanMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Total Guarantor Subsidiaries | Credit Facility | Prior Term Loan Facility    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Total Guarantor Subsidiaries | Credit Facility | Senior Secured Credit Facility - Revolving    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1] 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1] 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Total Guarantor Subsidiaries | Credit Facility | Senior Secured Credit Facility - Term Loan A    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]  
Total Guarantor Subsidiaries | Credit Facility | Senior Secured Credit Facility - Term Loan B    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]  
Total Guarantor Subsidiaries | Credit Facility | Line of Credit    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1] 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1] 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1]
Total Non-Guarantor Subsidiaries and Entities    
Cash flows provided by (used in) operating activities:    
Net income (loss) (5,511)us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (7,184)us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:    
Depreciation and amortization 245us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 165us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Relinquishment liability reassessment 0mtga_RelinquishmentLiabilityReassessment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2]  
Accretion of discount to the relinquishment liability 0mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Cash paid for accretion of discount to the relinquishment liability 0mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Loss on early extinguishment of debt   0mtga_GainLossonEarlyExtinguishmentorExchangeofDebt
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Payments of tender offer costs and discounts   0mtga_PaymentsOfTenderOfferCosts
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Amortization of debt issuance costs and accretion of bond discounts 80us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 80us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Provision for losses on receivables 744us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 634us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
(Gain) loss on disposition of assets 0us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Loss from unconsolidated affiliates 692us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 694us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Inter-company transactions 1,499mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 1,014mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Changes in operating assets and liabilities:    
(Increase) decrease in receivables (487)us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (79)us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Increase in inventories 0us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Increase in other assets (1,531)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (1,485)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Increase (decrease) in trade payables 134us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 1,055us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Increase in accrued interest 833us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (1,109)us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Increase in other liabilities (3,677)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 2,026us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Net cash flows provided by (used in) operating activities (6,979)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (4,189)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Cash flows provided by (used in) investing activities:    
Purchases of property and equipment, net of change in construction payables (247)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (7,219)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Issuance of third-party loans and advances (336)mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (382)mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Payments received on third-party loans 0mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
(Increase) decrease in restricted cash, net 0us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 7,804us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Proceeds from asset sales 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Investments in the New England Black Wolves (500)us-gaap_PaymentsForProceedsFromLimitedPartnership
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2]  
Investments in unconsolidated affiliates   (29)us-gaap_PaymentsToAcquireEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Inter-company transactions 19mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Net cash flows used in investing activities (1,064)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 174us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Cash flows provided by (used in) financing activities:    
Repayments to Mohegan Tribe   (1,375)us-gaap_RepaymentsOfRelatedPartyDebt
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Repayments of other long-term debt (40)us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] (8)us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Principal portion of relinquishment liability payments 0mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Distributions to Mohegan Tribe 0us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Payments of financing fees   0us-gaap_PaymentsOfDebtIssuanceCosts
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Payments on capital lease obligations 0us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 0us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Inter-company transactions 8,685us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 6,574us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Net cash flows provided by (used in) financing activities 8,645us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 5,191us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Net increase in cash and cash equivalents 602us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 1,176us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Cash and cash equivalents at beginning of period 402us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2],[3] 909us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Cash and cash equivalents at end of period 1,004us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[2] 2,085us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
[3]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Bank Credit Facility - Term    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditFacilityTermLoanMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Prior Term Loan Facility    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Senior Secured Credit Facility - Revolving    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[2] 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[2] 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Senior Secured Credit Facility - Term Loan A    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[2]  
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Senior Secured Credit Facility - Term Loan B    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[2]  
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Line of Credit    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[2] 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[2] 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[3]
Consolidating/Eliminating Adjustments    
Cash flows provided by (used in) operating activities:    
Net income (loss) 9,635us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
16,425us-gaap_ProfitLoss
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:    
Depreciation and amortization 0us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DepreciationAndAmortization
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Relinquishment liability reassessment 0mtga_RelinquishmentLiabilityReassessment
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
 
Accretion of discount to the relinquishment liability 0mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0mtga_AccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Cash paid for accretion of discount to the relinquishment liability 0mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0mtga_CashPaidForAccretionOfDiscountToRelinquishmentLiability
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Loss on early extinguishment of debt   0mtga_GainLossonEarlyExtinguishmentorExchangeofDebt
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Payments of tender offer costs and discounts   0mtga_PaymentsOfTenderOfferCosts
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Amortization of debt issuance costs and accretion of bond discounts 0us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AmortizationOfFinancingCostsAndDiscounts
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Provision for losses on receivables 0us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(Gain) loss on disposition of assets 0us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_GainLossOnDispositionOfAssets
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Loss from unconsolidated affiliates 0us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IncomeLossFromEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Inter-company transactions (9,632)mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(16,424)mtga_PaymentsforProceedsfromIntercompanyOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Changes in operating assets and liabilities:    
(Increase) decrease in receivables 234us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
131us-gaap_IncreaseDecreaseInAccountsReceivable
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Increase in inventories 0us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IncreaseDecreaseInInventories
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Increase in other assets (28)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(1)us-gaap_IncreaseDecreaseInOtherOperatingAssets
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Increase (decrease) in trade payables 0us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IncreaseDecreaseInAccountsPayableTrade
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Increase in accrued interest 0us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IncreaseDecreaseInInterestPayableNet
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Increase in other liabilities (209)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(137)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Net cash flows provided by (used in) operating activities 0us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(6)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Cash flows provided by (used in) investing activities:    
Purchases of property and equipment, net of change in construction payables 0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Issuance of third-party loans and advances 0mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0mtga_IssuanceOfThirdPartyLoansAndAdvances
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Payments received on third-party loans 0mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0mtga_PaymentsReceivedOnThirdPartyLoans
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(Increase) decrease in restricted cash, net 0us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_IncreaseDecreaseInRestrictedCash
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Proceeds from asset sales 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Investments in the New England Black Wolves 0us-gaap_PaymentsForProceedsFromLimitedPartnership
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
 
Investments in unconsolidated affiliates   0us-gaap_PaymentsToAcquireEquityMethodInvestments
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Inter-company transactions 12,504mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
4,426mtga_PaymentsforProceedsfromIntercompanyInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Net cash flows used in investing activities 12,504us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
4,426us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Cash flows provided by (used in) financing activities:    
Repayments to Mohegan Tribe   0us-gaap_RepaymentsOfRelatedPartyDebt
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Repayments of other long-term debt 0us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_RepaymentsOfOtherLongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Principal portion of relinquishment liability payments 0mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0mtga_PrincipalPortionOfRelinquishmentLiabilityPayments
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Distributions to Mohegan Tribe 0us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PaymentsOfDistributionsToAffiliates
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Payments of financing fees   0us-gaap_PaymentsOfDebtIssuanceCosts
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Payments on capital lease obligations 19us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
6us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Inter-company transactions (12,523)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(4,426)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Net cash flows provided by (used in) financing activities (12,504)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
(4,420)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Net increase in cash and cash equivalents 0us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Cash and cash equivalents at beginning of period 0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Cash and cash equivalents at end of period 0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
Consolidating/Eliminating Adjustments | Credit Facility | Bank Credit Facility - Term    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditFacilityTermLoanMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Consolidating/Eliminating Adjustments | Credit Facility | Prior Term Loan Facility    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit repayments   0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanCreditFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Consolidating/Eliminating Adjustments | Credit Facility | Senior Secured Credit Facility - Revolving    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankCreditRevolvingFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Consolidating/Eliminating Adjustments | Credit Facility | Senior Secured Credit Facility - Term Loan A    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanAFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
 
Consolidating/Eliminating Adjustments | Credit Facility | Senior Secured Credit Facility - Term Loan B    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings   0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_TermLoanBFacilityMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
 
Consolidating/Eliminating Adjustments | Credit Facility | Line of Credit    
Cash flows provided by (used in) financing activities:    
Credit facility/line of credit borrowings 0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
0us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Credit facility/line of credit repayments $ 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
$ 0us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtga_BankOfAmericaNALineOfCreditMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidationEliminationsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
[1] Includes the Pocono Subsidiaries, MBC, Mohegan Golf, Mohegan Ventures-NW, MVW, WTG and MTGA Gaming.
[2] Includes Mohegan Lacrosse, MGA and subsidiaries, Downs Lodging, Salishan-Mohegan, MG&H and Mohegan Resorts and subsidiaries.
[3] Includes MGA and subsidiaries, Downs Lodging, Salishan-Mohegan, MG&H and Mohegan Resorts and subsidiaries.