2.3.0.11 Html 30 116 1 false 2 0 false 2 true false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.mtga.com/role/DocumentAndEntityInformation Document and Entity Information false false R2.htm 1001000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://www.mtga.com/role/CondensedConsolidatedBalanceSheets CONDENSED CONSOLIDATED BALANCE SHEETS false false R3.htm 1002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME Sheet http://www.mtga.com/role/CondensedConsolidatedStatementsOfIncome CONDENSED CONSOLIDATED STATEMENTS OF INCOME false false R4.htm 1003000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL Sheet http://www.mtga.com/role/CondensedConsolidatedStatementsOfChangesInCapital CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL false false R5.htm 1004000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.mtga.com/role/CondensedConsolidatedStatementsOfCashFlows CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS false false R6.htm 1004500 - Statement - Condensed Consolidated Statements of Cash Flows Parenthetical Sheet http://www.mtga.com/role/CondensedConsolidatedStatementsOfCashFlowsParenthetical Condensed Consolidated Statements of Cash Flows Parenthetical false false R7.htm 2101100 - Disclosure - ORGANIZATION Sheet http://www.mtga.com/role/Organization ORGANIZATION false false R8.htm 2104100 - Disclosure - LIQUIDITY AND FINANCIAL POSITION Sheet http://www.mtga.com/role/LiquidityAndFinancialPosition LIQUIDITY AND FINANCIAL POSITION false false R9.htm 2107100 - Disclosure - BASIS OF PRESENTATION Sheet http://www.mtga.com/role/BasisOfPresentation BASIS OF PRESENTATION false false R10.htm 2113100 - Disclosure - LONG-TERM DEBT Sheet http://www.mtga.com/role/LongTermDebt LONG-TERM DEBT false false R11.htm 2116100 - Disclosure - RELATED PARTY TRANSACTIONS Sheet http://www.mtga.com/role/RelatedPartyTransactions RELATED PARTY TRANSACTIONS false false R12.htm 2119100 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://www.mtga.com/role/CommitmentsAndContingencies COMMITMENTS AND CONTINGENCIES false false R13.htm 2122100 - Disclosure - RELINQUISHMENT AGREEMENT Sheet http://www.mtga.com/role/RelinquishmentAgreement RELINQUISHMENT AGREEMENT false false R14.htm 2125100 - Disclosure - SEGMENT REPORTING Sheet http://www.mtga.com/role/SegmentReporting SEGMENT REPORTING false false R15.htm 2126100 - Disclosure - SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL STATEMENT INFORMATION Sheet http://www.mtga.com/role/SupplementalCondensedConsolidatingFinancialStatementInformation SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL STATEMENT INFORMATION false false All Reports Book All Reports Process Flow-Through: 1001000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Process Flow-Through: Removing column 'Mar. 31, 2011' Process Flow-Through: Removing column 'Jun. 30, 2010' Process Flow-Through: Removing column 'Mar. 31, 2010' Process Flow-Through: Removing column 'Sep. 30, 2009' Process Flow-Through: 1002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME Process Flow-Through: 1003000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL Process Flow-Through: 1004000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Process Flow-Through: 1004500 - Statement - Condensed Consolidated Statements of Cash Flows Parenthetical mtga-20110630.xml mtga-20110630.xsd mtga-20110630_cal.xml mtga-20110630_def.xml mtga-20110630_lab.xml mtga-20110630_pre.xml true true