RELATED PARTY TRANSACTIONS (Details) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013
Related Party Transaction [Line Items]
Distributions to Mohegan Tribe			$ 32,500,000	$ 35,000,000
Due to Mohegan Tribe	2,165,000		2,165,000		6,308,000
Mohegan Tribe of Indians of Connecticut
Related Party Transaction [Line Items]
Distributions to Mohegan Tribe	12,500,000	15,000,000	32,500,000	35,000,000
Expenses for services provided to related party	6,200,000	7,000,000	20,500,000	21,000,000
Incurred interest expense associated with a related party debt	541,000	741,000	1,700,000	2,300,000
Due to Mohegan Tribe	790,000		790,000		808,000
Mohegan Tribal Utility Authority
Related Party Transaction [Line Items]
Utilities purchased from related party	$ 4,400,000	$ 3,900,000	$ 15,200,000	$ 12,900,000