CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital at beginning of period	$ 199,385	$ 209,263	$ 198,724
Cumulative-effect of adoption of amendments to ASC 924 regarding jackpot liabilities			1,968
Contributions from members	0	0	280
Net income (loss)	(24,558)us-gaap_ProfitLoss	47,542us-gaap_ProfitLoss	61,241us-gaap_ProfitLoss
Distributions to Mohegan Tribe	(50,000)	(50,000)	(52,950)
Repurchase of membership interest		(7,420)
Total capital at end of period	124,827	199,385	209,263
Mohegan Tribal Gaming Authority
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital at beginning of period	199,236	208,681	196,403
Cumulative-effect of adoption of amendments to ASC 924 regarding jackpot liabilities			1,968
Contributions from members			0
Net income (loss)	(24,178)	50,326	63,260
Distributions to Mohegan Tribe	(50,000)	(50,000)	(52,950)
Repurchase of membership interest		(9,771)
Total capital at end of period	125,058	199,236	208,681
Non-controlling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital at beginning of period	149	582	2,321
Cumulative-effect of adoption of amendments to ASC 924 regarding jackpot liabilities			0
Contributions from members			280
Net income (loss)	(380)	(2,784)	(2,019)
Distributions to Mohegan Tribe	0	0	0
Repurchase of membership interest		2,351
Total capital at end of period	$ (231)	$ 149	$ 582

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