RELATED PARTY TRANSACTIONS	3 Months Ended
RELATED PARTY TRANSACTIONS	Dec. 31, 2011
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	RELATED PARTY TRANSACTIONS: Distributions to the Tribe totaled $18.0 million and $4.5 million for the three months ended December 31, 2011 and 2010, respectively. The Tribe provides certain governmental and administrative services in connection with the operation of Mohegan Sun. The Authority incurred expenses for such services totaling $6.8 million and $6.9 million for the three months ended December 31, 2011 and 2010, respectively. The Authority purchases most of its utilities, including electricity, gas, water and waste water services, from an instrumentality of the Tribe, the Mohegan Tribal Utility Authority. The Authority incurred costs for such utilities totaling $5.4 million and $5.2 million for the three months ended December 31, 2011 and 2010, respectively. The Authority incurred interest expense associated with the Mohegan Tribe Promissory Note totaling $378,000 for each of the three months ended December 31, 2011 and 2010. The Authority incurred interest expense associated with the Mohegan Tribe Credit Facility totaling $42,000 for the three months ended December 31, 2011.

The entire disclosure for related party transactions, including the nature of the relationship(s), a description of the transactions, the amount of the transactions, the effects of any change in the method of establishing the terms of the transaction from the previous period, stated interest rate, expiration date, terms and manner of settlement per the agreement with the related party, and amounts due to or from related parties. If the entity and one or more other entities are under common ownership or management control and this control affects the operating results or financial position, disclosure includes the nature of the control relationship even if there are no transactions between the entities. Disclosure may also include the aggregate amount of current and deferred tax expense for each statement of earnings presented where the entity is a member of a group that files a consolidated tax return, the amount of any tax related balances due to or from affiliates as of the date of each statement of financial position presented, the principal provisions of the method by which the consolidated amount of current and deferred tax expense is allocated to the members of the group and the nature and effect of any changes in that method. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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