RELATED PARTY TRANSACTIONS (Details) (USD $)	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Distributions to Mohegan Tribe	$ 10,000,000	$ 10,000,000
Mohegan Tribe of Indians of Connecticut
Related Party Transaction [Line Items]
Distributions to Mohegan Tribe	10,000,000	10,000,000
Expenses for services provided to related party	7,100,000	7,000,000
Incurred interest expense associated with a related party debt	535,000	616,000
Mohegan Tribal Utility Authority
Related Party Transaction [Line Items]
Utilities purchased from related party	$ 4,300,000	$ 4,500,000

Amount of interest expense incurred on a debt or other obligation to related party.

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- Definition

The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

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- Definition

Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

+ References

No definition available.

+ Details

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