SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL STATEMENT INFORMATION - STATEMENTS OF CASH FLOWS (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Cash flows provided by (used in) operating activities:
Net income (loss)	$ (44,157)		$ 42,695
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization	60,067		60,465
Accretion of discount to the relinquishment liability	1,654		3,730
Cash paid for accretion of discount to the relinquishment liability	(2,071)		(3,927)
Loss on early extinguishment of debt	58,481		403
Payments of tender offer costs and discounts	(48,155)		0
Amortization of debt issuance costs and accretion of bond discounts	6,164		9,184
Amortization of net deferred gain on settlement of derivative instruments	0		(66)
Provision for losses on receivables	2,953		2,574
(Gain) loss on disposition of assets	(12)		277
Loss from unconsolidated affiliates	794		1,698
Changes in operating assets and liabilities:
Increase in receivables	(5,389)		(3,754)
(Increase) decrease in inventories	(1,713)		68
(Increase) decrease in other assets	(4,660)		5,285
Increase (decrease) in trade payables	7,671		(2,181)
Increase (decrease) in accrued interest	7,709		(21,967)
Increase (decrease) in other liabilities	8,987		(8,875)
Intercompany transactions	0
Net cash flows provided by operating activities	48,323		85,609
Cash flows provided by (used in) investing activities:
Purchases of property and equipment, net of change in construction payables	(28,901)		(39,185)
Issuance of third-party loans and advances	(1,392)		(1,655)
Payments received on third-party loans	606		103
(Increase) decrease in restricted cash, net	14,150		21,669
Proceeds from asset sales	105		171
Payment of deposits	0
Investments in unconsolidated affiliates	(29)		(4,965)
Intercompany transactions	0
Other cash flows provided by (used in) investing activities			(1,381)
Net cash flows used in investing activities	(15,461)		(23,862)
Cash flows provided by (used in) financing activities:
Repayments to Mohegan Tribe	(2,750)		(7,462)
Repayments of other long-term debt	(191,088)		(15,798)
Principal portion of relinquishment liability payments	(29,129)		(27,951)
Distributions to Mohegan Tribe	(32,500)		(35,000)
Payments of financing fees	(12,631)		(3,491)
Payments on capital lease obligations	(1,709)		(2,838)
Intercompany transactions	0		(2,838)
Net cash flows used in financing activities	(24,828)		(95,540)
Net increase (decrease) in cash and cash equivalents	8,034		(33,793)
Cash and cash equivalents at beginning of period	63,624		114,084
Cash and cash equivalents at end of period	71,658		80,291
Credit Facility | Prior Bank Credit Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0		(3,000)
Credit Facility/Line of Credit borrowings	0		3,000
Credit Facility | Bank Credit Facility - Term
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(393,000)		(3,000)
Credit Facility | Prior Term Loan Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(222,103)		0
Credit Facility | Senior Secured Credit Facility - Revolving
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(173,000)		0
Credit Facility/Line of Credit borrowings	193,000		0
Credit Facility | Senior Secured Credit Facility - Term Loan A
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(1,563)		0
Credit Facility/Line of Credit borrowings	124,343		0
Credit Facility | Senior Secured Credit Facility - Term Loan B
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(3,650)		0
Credit Facility/Line of Credit borrowings	720,952		0
Credit Facility | Line of Credit
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(258,415)		0
Credit Facility/Line of Credit borrowings	258,415		0
Authority
Cash flows provided by (used in) operating activities:
Net income (loss)	(43,736)		45,462
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization	49,091		50,444
Accretion of discount to the relinquishment liability	1,654		3,730
Cash paid for accretion of discount to the relinquishment liability	(2,071)
Loss on early extinguishment of debt	58,481
Payments of tender offer costs and discounts	(48,155)
Amortization of debt issuance costs and accretion of bond discounts	5,925
Provision for losses on receivables	877
(Gain) loss on disposition of assets	(15)
Loss from unconsolidated affiliates	(154)
Changes in operating assets and liabilities:
Increase in receivables	(3,409)
(Increase) decrease in inventories	(1,342)
(Increase) decrease in other assets	992
Increase (decrease) in trade payables	6,288
Increase (decrease) in accrued interest	9,114
Increase (decrease) in other liabilities	1,231
Intercompany transactions	(6,466)
Net cash flows provided by operating activities	28,305		56,345
Cash flows provided by (used in) investing activities:
Purchases of property and equipment, net of change in construction payables	(14,680)		(19,298)
Issuance of third-party loans and advances	0
Payments received on third-party loans	606
(Increase) decrease in restricted cash, net	44		0
Proceeds from asset sales	105
Payment of deposits	0
Investments in unconsolidated affiliates	0		0
Intercompany transactions	19,812
Other cash flows provided by (used in) investing activities			53,662
Net cash flows used in investing activities	5,887		34,364
Cash flows provided by (used in) financing activities:
Repayments to Mohegan Tribe	0		0
Repayments of other long-term debt	(191,049)		(15,775)
Principal portion of relinquishment liability payments	(29,129)		(27,951)
Distributions to Mohegan Tribe	(32,500)		(35,000)
Payments of financing fees	(12,631)		(3,291)
Payments on capital lease obligations	(1,709)
Intercompany transactions	0		(39,371)
Net cash flows used in financing activities	(22,039)		(124,388)
Net increase (decrease) in cash and cash equivalents	12,153		(33,679)
Cash and cash equivalents at beginning of period	44,060		91,836
Cash and cash equivalents at end of period	56,213		58,157
Authority | Credit Facility | Prior Bank Credit Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments			(3,000)
Credit Facility/Line of Credit borrowings			3,000
Authority | Credit Facility | Bank Credit Facility - Term
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(393,000)		(3,000)
Authority | Credit Facility | Prior Term Loan Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(222,103)
Authority | Credit Facility | Senior Secured Credit Facility - Revolving
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(173,000)
Credit Facility/Line of Credit borrowings	193,000
Authority | Credit Facility | Senior Secured Credit Facility - Term Loan A
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(1,563)
Credit Facility/Line of Credit borrowings	124,343
Authority | Credit Facility | Senior Secured Credit Facility - Term Loan B
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(3,650)
Credit Facility/Line of Credit borrowings	720,952
Authority | Credit Facility | Line of Credit
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	(258,415)
Credit Facility/Line of Credit borrowings	258,415
Total Guarantor Subsidiaries
Cash flows provided by (used in) operating activities:
Net income (loss)	(22,024)	[1]	(6,478)	[1]
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization	10,318	[1]	10,021	[1]
Accretion of discount to the relinquishment liability	0	[1]	0	[1]
Cash paid for accretion of discount to the relinquishment liability	0	[1]
Loss on early extinguishment of debt	0	[1]
Payments of tender offer costs and discounts	0	[1]
Amortization of debt issuance costs and accretion of bond discounts	0	[1]
Provision for losses on receivables	183	[1]
(Gain) loss on disposition of assets	3	[1]
Loss from unconsolidated affiliates	0	[1]
Changes in operating assets and liabilities:
Increase in receivables	(1,849)	[1]
(Increase) decrease in inventories	(371)	[1]
(Increase) decrease in other assets	(229)	[1]
Increase (decrease) in trade payables	1,382	[1]
Increase (decrease) in accrued interest	0	[1]
Increase (decrease) in other liabilities	2,562	[1]
Intercompany transactions	46,421	[1]
Net cash flows provided by operating activities	36,396	[1]	38,754	[1]
Cash flows provided by (used in) investing activities:
Purchases of property and equipment, net of change in construction payables	(3,382)	[1]	(3,570)	[1]
Issuance of third-party loans and advances	0	[1]
Payments received on third-party loans	0	[1]
(Increase) decrease in restricted cash, net	2,063	[1]	2,727	[1]
Proceeds from asset sales	0	[1]
Payment of deposits	0	[1]
Investments in unconsolidated affiliates	0	[1]	0	[1]
Intercompany transactions	(21,079)	[1]
Other cash flows provided by (used in) investing activities			(15,257)	[1]
Net cash flows used in investing activities	(22,398)	[1]	(16,100)	[1]
Cash flows provided by (used in) financing activities:
Repayments to Mohegan Tribe	0	[1]	0	[1]
Repayments of other long-term debt	0	[1]	0	[1]
Principal portion of relinquishment liability payments	0	[1]	0	[1]
Distributions to Mohegan Tribe	0	[1]	0	[1]
Payments of financing fees	0	[1]	0	[1]
Payments on capital lease obligations	(28)	[1]
Intercompany transactions	(20,728)	[1]	(22,866)	[1]
Net cash flows used in financing activities	(20,756)	[1]	(22,866)	[1]
Net increase (decrease) in cash and cash equivalents	(6,758)	[1]	(212)	[1]
Cash and cash equivalents at beginning of period	18,655	[1]	21,757	[1]
Cash and cash equivalents at end of period	11,897	[1]	21,545	[1]
Total Guarantor Subsidiaries | Credit Facility | Prior Bank Credit Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments			0	[1]
Credit Facility/Line of Credit borrowings			0	[1]
Total Guarantor Subsidiaries | Credit Facility | Bank Credit Facility - Term
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[1]	0	[1]
Total Guarantor Subsidiaries | Credit Facility | Prior Term Loan Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[1]
Total Guarantor Subsidiaries | Credit Facility | Senior Secured Credit Facility - Revolving
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[1]
Credit Facility/Line of Credit borrowings	0	[1]
Total Guarantor Subsidiaries | Credit Facility | Senior Secured Credit Facility - Term Loan A
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[1]
Credit Facility/Line of Credit borrowings	0	[1]
Total Guarantor Subsidiaries | Credit Facility | Senior Secured Credit Facility - Term Loan B
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[1]
Credit Facility/Line of Credit borrowings	0	[1]
Total Guarantor Subsidiaries | Credit Facility | Line of Credit
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[1]
Credit Facility/Line of Credit borrowings	0	[1]
Total Non-Guarantor Subsidiaries and Entities
Cash flows provided by (used in) operating activities:
Net income (loss)	(21,781)	[2]	(13,707)	[2]
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization	658	[2]	0	[2]
Accretion of discount to the relinquishment liability	0	[2]	0	[2]
Cash paid for accretion of discount to the relinquishment liability	0	[2]
Loss on early extinguishment of debt	0	[2]
Payments of tender offer costs and discounts	0	[2]
Amortization of debt issuance costs and accretion of bond discounts	239	[2]
Provision for losses on receivables	1,893	[2]
(Gain) loss on disposition of assets	0	[2]
Loss from unconsolidated affiliates	948	[2]
Changes in operating assets and liabilities:
Increase in receivables	(688)	[2]
(Increase) decrease in inventories	0	[2]
(Increase) decrease in other assets	(5,387)	[2]
Increase (decrease) in trade payables	1	[2]
Increase (decrease) in accrued interest	(1,405)	[2]
Increase (decrease) in other liabilities	5,749	[2]
Intercompany transactions	3,423	[2]
Net cash flows provided by operating activities	(16,350)	[2]	(9,490)	[2]
Cash flows provided by (used in) investing activities:
Purchases of property and equipment, net of change in construction payables	(10,839)	[2]	(16,317)	[2]
Issuance of third-party loans and advances	(1,392)	[2]
Payments received on third-party loans	0	[2]
(Increase) decrease in restricted cash, net	12,043	[2]	18,942	[2]
Proceeds from asset sales	0	[2]
Payment of deposits	0	[2]
Investments in unconsolidated affiliates	(29)	[2]	(4,965)	[2]
Intercompany transactions	0	[2]
Other cash flows provided by (used in) investing activities			(1,655)	[2]
Net cash flows used in investing activities	(217)	[2]	(3,995)	[2]
Cash flows provided by (used in) financing activities:
Repayments to Mohegan Tribe	(2,750)	[2]	(7,462)	[2]
Repayments of other long-term debt	(39)	[2]	(23)	[2]
Principal portion of relinquishment liability payments	0	[2]	0	[2]
Distributions to Mohegan Tribe	0	[2]	0	[2]
Payments of financing fees	0	[2]	(200)	[2]
Payments on capital lease obligations	0	[2]
Intercompany transactions	21,995	[2]	21,268	[2]
Net cash flows used in financing activities	19,206	[2]	13,583	[2]
Net increase (decrease) in cash and cash equivalents	2,639	[2]	98	[2]
Cash and cash equivalents at beginning of period	909	[2]	491	[2]
Cash and cash equivalents at end of period	3,548	[2]	589	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Prior Bank Credit Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments			0	[2]
Credit Facility/Line of Credit borrowings			0	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Bank Credit Facility - Term
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[2]	0	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Prior Term Loan Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Senior Secured Credit Facility - Revolving
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[2]
Credit Facility/Line of Credit borrowings	0	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Senior Secured Credit Facility - Term Loan A
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[2]
Credit Facility/Line of Credit borrowings	0	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Senior Secured Credit Facility - Term Loan B
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[2]
Credit Facility/Line of Credit borrowings	0	[2]
Total Non-Guarantor Subsidiaries and Entities | Credit Facility | Line of Credit
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0	[2]
Credit Facility/Line of Credit borrowings	0	[2]
Consolidating/Eliminating Adjustments
Cash flows provided by (used in) operating activities:
Net income (loss)	43,384		17,418
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization	0		0
Accretion of discount to the relinquishment liability	0		0
Cash paid for accretion of discount to the relinquishment liability	0
Loss on early extinguishment of debt	0
Payments of tender offer costs and discounts	0
Amortization of debt issuance costs and accretion of bond discounts	0
Provision for losses on receivables	0
(Gain) loss on disposition of assets	0
Loss from unconsolidated affiliates	0
Changes in operating assets and liabilities:
Increase in receivables	557
(Increase) decrease in inventories	0
(Increase) decrease in other assets	(36)
Increase (decrease) in trade payables	0
Increase (decrease) in accrued interest	0
Increase (decrease) in other liabilities	(555)
Intercompany transactions	(43,378)
Net cash flows provided by operating activities	(28)		0
Cash flows provided by (used in) investing activities:
Purchases of property and equipment, net of change in construction payables	0		0
Issuance of third-party loans and advances	0
Payments received on third-party loans	0
(Increase) decrease in restricted cash, net	0		0
Proceeds from asset sales	0
Payment of deposits	0
Investments in unconsolidated affiliates	0		0
Intercompany transactions	1,267
Other cash flows provided by (used in) investing activities			(38,131)
Net cash flows used in investing activities	1,267		(38,131)
Cash flows provided by (used in) financing activities:
Repayments to Mohegan Tribe	0		0
Repayments of other long-term debt	0		0
Principal portion of relinquishment liability payments	0		0
Distributions to Mohegan Tribe	0		0
Payments of financing fees	0		0
Payments on capital lease obligations	28
Intercompany transactions	(1,267)		38,131
Net cash flows used in financing activities	(1,239)		38,131
Net increase (decrease) in cash and cash equivalents	0		0
Cash and cash equivalents at beginning of period	0		0
Cash and cash equivalents at end of period	0		0
Consolidating/Eliminating Adjustments | Credit Facility | Prior Bank Credit Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments			0
Credit Facility/Line of Credit borrowings			0
Consolidating/Eliminating Adjustments | Credit Facility | Bank Credit Facility - Term
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0		0
Consolidating/Eliminating Adjustments | Credit Facility | Prior Term Loan Facility
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0
Consolidating/Eliminating Adjustments | Credit Facility | Senior Secured Credit Facility - Revolving
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0
Credit Facility/Line of Credit borrowings	0
Consolidating/Eliminating Adjustments | Credit Facility | Senior Secured Credit Facility - Term Loan A
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0
Credit Facility/Line of Credit borrowings	0
Consolidating/Eliminating Adjustments | Credit Facility | Senior Secured Credit Facility - Term Loan B
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0
Credit Facility/Line of Credit borrowings	0
Consolidating/Eliminating Adjustments | Credit Facility | Line of Credit
Cash flows provided by (used in) financing activities:
Credit Facility/Line of Credit repayments	0
Credit Facility/Line of Credit borrowings	$ 0

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

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