MOHEGAN VENTURES-NORTHWEST, LLC (COWLITZ PROJECT) - Reconciliation of Management Fees (Details) $ in Thousands	3 Months Ended
Dec. 31, 2017 USD ($)
Management Fees [Roll Forward]
Beginning balance	$ 3,189
Fees earned	1,363
Payments received	(2,159)
Ending balance	2,393
Distributions from Salishan-Mohegan, LLC to Mohegan Tribe	$ 390

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration