SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL STATEMENT INFORMATION - STATEMENTS OF INCOME (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended				9 Months Ended
	Mar. 06, 2012	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Net revenues		$ 344,436		$ 361,379		$ 1,047,466		$ 1,044,928
Operating costs and expenses:
Gaming and other operations		218,495		221,838		655,894		651,261
Advertising, general and administrative		53,381		56,834		159,839		163,563
Depreciation and amortization		21,693		22,621		64,077		68,451
Severance		0		(11)		0		244
Loss on disposition of assets		31		0		320		0
Total operating costs and expenses		293,600		301,282		880,130		883,519
Income (loss) from operations		50,836		60,097		167,336		161,409
Accretion of discount to the relinquishment liability		(2,062)		(2,842)		(6,186)		(8,525)
Interest expense		(41,581)		(29,378)		(103,047)		(88,837)
Loss on early exchange of debt	14,300	(17)		0		(14,323)		0
Loss on interests in subsidiaries		0		0		0		0
Other income (expense), net		1,849		783		3,528		1,837
Net income (loss)		9,025		28,660		47,308		65,884
Loss attributable to non-controlling interests		336		486		1,147		1,400
Net income attributable to Mohegan Tribal Gaming Authority		9,361		29,146		48,455		67,284
Authority [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues		263,090		283,576		809,936		821,562
Operating costs and expenses:
Gaming and other operations		160,866		164,553		485,354		487,172
Advertising, general and administrative		43,189		47,996		132,123		137,387
Depreciation and amortization		17,384		17,264		51,335		52,243
Severance				(11)				244
Loss on disposition of assets		18				36
Total operating costs and expenses		221,457		229,802		668,848		677,046
Income (loss) from operations		41,633		53,774		141,088		144,516
Accretion of discount to the relinquishment liability		(2,062)		(2,842)		(6,186)		(8,525)
Interest expense		(20,775)		(15,017)		(51,767)		(46,196)
Loss on early exchange of debt		(17)				(14,323)
Loss on interests in subsidiaries		(9,451)		(6,896)		(20,640)		(22,358)
Other income (expense), net		33		127		283		(153)
Net income (loss)		9,361		29,146		48,455		67,284
Loss attributable to non-controlling interests		0		0		0		0
Net income attributable to Mohegan Tribal Gaming Authority		9,361		29,146		48,455		67,284
MBC 100% Owned Guarantor Subsidiary [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues				1,263				1,275
Operating costs and expenses:
Gaming and other operations				895				1,616
Advertising, general and administrative				552				950
Depreciation and amortization				47				142
Severance				0				0
Total operating costs and expenses				1,494				2,708
Income (loss) from operations				(231)				(1,433)
Accretion of discount to the relinquishment liability				0				0
Interest expense				0				(6)
Loss on interests in subsidiaries				0				0
Other income (expense), net				0				0
Net income (loss)				(231)				(1,439)
Loss attributable to non-controlling interests				0				0
Net income attributable to Mohegan Tribal Gaming Authority				(231)				(1,439)
Other 100% Owned Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues				77,090	[1]			222,644	[1]
Operating costs and expenses:
Gaming and other operations				56,940	[1]			163,026	[1]
Advertising, general and administrative				7,444	[1]			22,639	[1]
Depreciation and amortization				5,310	[1]			16,066	[1]
Severance				0	[1]			0	[1]
Total operating costs and expenses				69,694	[1]			201,731	[1]
Income (loss) from operations				7,396	[1]			20,913	[1]
Accretion of discount to the relinquishment liability				0	[1]			0	[1]
Interest expense				(13,805)	[1]			(41,030)	[1]
Loss on interests in subsidiaries				(462)	[1]			(1,348)	[1]
Other income (expense), net				206	[1]			546	[1]
Net income (loss)				(6,665)	[1]			(20,919)	[1]
Loss attributable to non-controlling interests				0	[1]			0	[1]
Net income attributable to Mohegan Tribal Gaming Authority				(6,665)	[1]			(20,919)	[1]
Total Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues		82,271	[2]	78,353		238,457	[2]	223,919
Operating costs and expenses:
Gaming and other operations		58,554	[2]	57,835		171,467	[2]	164,642
Advertising, general and administrative		8,823	[2]	7,996		24,761	[2]	23,589
Depreciation and amortization		4,309	[2]	5,357		12,742	[2]	16,208
Severance				0				0
Loss on disposition of assets		13	[2]			284	[2]
Total operating costs and expenses		71,699	[2]	71,188		209,254	[2]	204,439
Income (loss) from operations		10,572	[2]	7,165		29,203	[2]	19,480
Accretion of discount to the relinquishment liability		0	[2]	0		0	[2]	0
Interest expense		(19,974)	[2]	(13,805)		(49,379)	[2]	(41,036)
Loss on early exchange of debt		0	[2]			0	[2]
Loss on interests in subsidiaries		(226)	[2]	(462)		(1,103)	[2]	(1,348)
Other income (expense), net		177	[2]	206		639	[2]	546
Net income (loss)		(9,451)	[2]	(6,896)		(20,640)	[2]	(22,358)
Loss attributable to non-controlling interests		0	[2]	0		0	[2]	0
Net income attributable to Mohegan Tribal Gaming Authority		(9,451)	[2]	(6,896)		(20,640)	[2]	(22,358)
Total Non Guarantor Entities [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues		0	[3]	0	[3]	0	[3]	0	[3]
Operating costs and expenses:
Gaming and other operations		0	[3]	0	[3]	0	[3]	0	[3]
Advertising, general and administrative		1,369	[3]	842	[3]	2,955	[3]	2,587	[3]
Depreciation and amortization		0	[3]	0	[3]	0	[3]	0	[3]
Severance				0	[3]			0	[3]
Loss on disposition of assets		0	[3]			0	[3]
Total operating costs and expenses		1,369	[3]	842	[3]	2,955	[3]	2,587	[3]
Income (loss) from operations		(1,369)	[3]	(842)	[3]	(2,955)	[3]	(2,587)	[3]
Accretion of discount to the relinquishment liability		0	[3]	0	[3]	0	[3]	0	[3]
Interest expense		(977)	[3]	(722)	[3]	(2,480)	[3]	(2,096)	[3]
Loss on early exchange of debt		0	[3]			0	[3]
Loss on interests in subsidiaries		0	[3]	0	[3]	0	[3]	0	[3]
Other income (expense), net		1,784	[3]	616	[3]	3,185	[3]	1,935	[3]
Net income (loss)		(562)	[3]	(948)	[3]	(2,250)	[3]	(2,748)	[3]
Loss attributable to non-controlling interests		0	[3]	0	[3]	0	[3]	0	[3]
Net income attributable to Mohegan Tribal Gaming Authority		(562)	[3]	(948)	[3]	(2,250)	[3]	(2,748)	[3]
Consolidating/Eliminating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues		(925)		(550)		(927)		(553)
Operating costs and expenses:
Gaming and other operations		(925)		(550)		(927)		(553)
Advertising, general and administrative		0		0		0		0
Depreciation and amortization		0		0		0		0
Severance				0				0
Loss on disposition of assets		0				0
Total operating costs and expenses		(925)		(550)		(927)		(553)
Income (loss) from operations		0		0		0		0
Accretion of discount to the relinquishment liability		0		0		0		0
Interest expense		145		166		579		491
Loss on early exchange of debt		0				0
Loss on interests in subsidiaries		9,677		7,358		21,743		23,706
Other income (expense), net		(145)		(166)		(579)		(491)
Net income (loss)		9,677		7,358		21,743		23,706
Loss attributable to non-controlling interests		336		486		1,147		1,400
Net income attributable to Mohegan Tribal Gaming Authority		$ 10,013		$ 7,844		$ 22,890		$ 25,106

[1] Includes the Pennsylvania Entities, Mohegan Golf, MCV-PA, Mohegan Ventures-NW, MVW, WTG and MTGA Gaming.

[2] Includes the Pennsylvania Entities, MBC, Mohegan Golf, MCV-PA, Mohegan Ventures-NW, MVW, WTG and MTGA Gaming.

[3] Includes Salishan-Mohegan, MG&H and Mohegan Resorts and subsidiaries.