SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL STATEMENT INFORMATION - Statements of Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Revenues:
Gaming	$ 277,734		$ 274,753
Food and beverage	22,671		22,719
Hotel	12,226		10,692
Retail, entertainment and other	28,299		29,505
Gross revenues	340,930		337,669
Less-Promotional allowances	(24,198)		(24,846)
Net revenues	316,732		312,823
Operating costs and expenses:
Gaming	166,099		176,302
Food and beverage	10,811		10,099
Hotel	3,503		3,720
Retail, entertainment and other	12,244		12,776
Advertising, general and administrative	45,815		46,942
Corporate	7,639		9,432
Depreciation and amortization	20,053		19,118
(Gain) loss on disposition of assets	739		(1)
Relinquishment liability reassessment	56		0
Pre-opening	0		1,162
Total operating costs and expenses	266,959		279,550
Income from operations	49,773		33,273
Other income (expense):
Accretion of discount to the relinquishment liability	(227)		(551)
Interest income	1,834		1,644
Interest expense, net of capitalized interest	(36,255)		(38,969)
Loss on early extinguishment of debt	0		(62,083)
Loss on interests in subsidiaries	0		0
Other expense, net	(728)		(704)
Total other expense	(35,376)		(100,663)
Net income (loss)	14,397		(67,390)
Loss attributable to non-controlling interests	369		136
Net income (loss) attributable to Mohegan Tribal Gaming Authority	14,766		(67,254)
Authority
Revenues:
Gaming	212,543		208,474
Food and beverage	15,826		15,924
Hotel	10,989		10,251
Retail, entertainment and other	25,368		27,259
Gross revenues	264,726		261,908
Less-Promotional allowances	(19,203)		(20,267)
Net revenues	245,523		241,641
Operating costs and expenses:
Gaming	118,427		128,116
Food and beverage	8,729		8,004
Hotel	3,418		3,657
Retail, entertainment and other	10,784		11,932
Advertising, general and administrative	38,088		38,503
Corporate	3,491		3,428
Depreciation and amortization	16,281		15,532
(Gain) loss on disposition of assets	737		(1)
Relinquishment liability reassessment	56
Pre-opening			0
Total operating costs and expenses	200,011		209,171
Income from operations	45,512		32,470
Other income (expense):
Accretion of discount to the relinquishment liability	(227)		(551)
Interest income	12		25
Interest expense, net of capitalized interest	(24,026)		(25,997)
Loss on early extinguishment of debt			(62,083)
Loss on interests in subsidiaries	(6,472)		(11,117)
Other expense, net	(33)		(2)
Total other expense	(30,746)		(99,725)
Net income (loss)	14,766		(67,255)
Loss attributable to non-controlling interests	0		0
Net income (loss) attributable to Mohegan Tribal Gaming Authority	14,766		(67,255)
Total Guarantor Subsidiaries
Revenues:
Gaming	65,191	[1]	66,279	[1]
Food and beverage	6,845	[1]	6,795	[1]
Hotel	1,237	[1]	441	[1]
Retail, entertainment and other	2,362	[1]	2,026	[1]
Gross revenues	75,635	[1]	75,541	[1]
Less-Promotional allowances	(4,990)	[1]	(4,575)	[1]
Net revenues	70,645	[1]	70,966	[1]
Operating costs and expenses:
Gaming	47,672	[1]	48,186	[1]
Food and beverage	2,082	[1]	2,095	[1]
Hotel	1,298	[1]	535	[1]
Retail, entertainment and other	960	[1]	845	[1]
Advertising, general and administrative	7,771	[1]	8,458	[1]
Corporate	0	[1]	0	[1]
Depreciation and amortization	3,527	[1]	3,421	[1]
(Gain) loss on disposition of assets	2	[1]	0	[1]
Relinquishment liability reassessment	0	[1]
Pre-opening			1,162	[1]
Total operating costs and expenses	63,312	[1]	64,702	[1]
Income from operations	7,333	[1]	6,264	[1]
Other income (expense):
Accretion of discount to the relinquishment liability	0	[1]	0	[1]
Interest income	1,443	[1]	984	[1]
Interest expense, net of capitalized interest	(10,106)	[1]	(11,317)	[1]
Loss on early extinguishment of debt			0	[1]
Loss on interests in subsidiaries	(3,163)	[1]	(5,307)	[1]
Other expense, net	0	[1]	0	[1]
Total other expense	(11,826)	[1]	(15,640)	[1]
Net income (loss)	(4,493)	[1]	(9,376)	[1]
Loss attributable to non-controlling interests	0	[1]	0	[1]
Net income (loss) attributable to Mohegan Tribal Gaming Authority	(4,493)	[1]	(9,376)	[1]
Total Non-Guarantor Subsidiaries and Entities
Revenues:
Gaming	0	[2]	0	[3]
Food and beverage	0	[2]	0	[3]
Hotel	0	[2]	0	[3]
Retail, entertainment and other	1,842	[2]	752	[3]
Gross revenues	1,842	[2]	752	[3]
Less-Promotional allowances	(3)	[2]	(3)	[3]
Net revenues	1,839	[2]	749	[3]
Operating costs and expenses:
Gaming	0	[2]	0	[3]
Food and beverage	0	[2]	0	[3]
Hotel	0	[2]	0	[3]
Retail, entertainment and other	502	[2]	0	[3]
Advertising, general and administrative	4,164	[2]	6,045	[3]
Corporate	0	[2]	0	[3]
Depreciation and amortization	245	[2]	165	[3]
(Gain) loss on disposition of assets	0	[2]	0	[3]
Relinquishment liability reassessment	0	[2]
Pre-opening			0	[3]
Total operating costs and expenses	4,911	[2]	6,210	[3]
Income from operations	(3,072)	[2]	(5,461)	[3]
Other income (expense):
Accretion of discount to the relinquishment liability	0	[2]	0	[3]
Interest income	1,929	[2]	1,649	[3]
Interest expense, net of capitalized interest	(3,673)	[2]	(2,670)	[3]
Loss on early extinguishment of debt			0	[3]
Loss on interests in subsidiaries	0	[2]	0	[3]
Other expense, net	(695)	[2]	(702)	[3]
Total other expense	(2,439)	[2]	(1,723)	[3]
Net income (loss)	(5,511)	[2]	(7,184)	[3]
Loss attributable to non-controlling interests	251	[2]	0	[3]
Net income (loss) attributable to Mohegan Tribal Gaming Authority	(5,260)	[2]	(7,184)	[3]
Consolidating/Eliminating Adjustments
Revenues:
Gaming	0		0
Food and beverage	0		0
Hotel	0		0
Retail, entertainment and other	(1,273)		(532)
Gross revenues	(1,273)		(532)
Less-Promotional allowances	(2)		(1)
Net revenues	(1,275)		(533)
Operating costs and expenses:
Gaming	0		0
Food and beverage	0		0
Hotel	(1,213)		(472)
Retail, entertainment and other	(2)		(1)
Advertising, general and administrative	(4,208)		(6,064)
Corporate	4,148		6,004
Depreciation and amortization	0		0
(Gain) loss on disposition of assets	0		0
Relinquishment liability reassessment	0
Pre-opening			0
Total operating costs and expenses	(1,275)		(533)
Income from operations	0		0
Other income (expense):
Accretion of discount to the relinquishment liability	0		0
Interest income	(1,550)		(1,014)
Interest expense, net of capitalized interest	1,550		1,015
Loss on early extinguishment of debt			0
Loss on interests in subsidiaries	9,635		16,424
Other expense, net	0		0
Total other expense	9,635		16,425
Net income (loss)	9,635		16,425
Loss attributable to non-controlling interests	118		136
Net income (loss) attributable to Mohegan Tribal Gaming Authority	$ 9,753		$ 16,561

[1] Includes the Pocono Subsidiaries, MBC, Mohegan Golf, Mohegan Ventures-NW, MVW, WTG and MTGA Gaming.

[2] Includes Mohegan Lacrosse, MGA and subsidiaries, Downs Lodging, Salishan-Mohegan, MG&H and Mohegan Resorts and subsidiaries.

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