CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) AND COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Net revenues	$ 107,199	$ 347,607	$ 820,952	$ 974,804
Operating costs and expenses:
Advertising, general and administrative, including related party transactions of $4,517, $10,601, $23,129 and $33,417, respectively	35,672	53,534	172,768	149,664
Corporate, including related party transactions of $1,679, $1,821, $6,060 and $4,655, respectively	7,700	13,839	31,959	38,728
Depreciation and amortization	26,477	22,810	82,847	92,682
Impairment of Mohegan Sun Pocono's intangible assets			126,596	0
Other, net	2,656	2,910	9,000	6,357
Total operating costs and expenses	127,736	292,397	904,319	853,998
Income (loss) from operations	(20,537)	55,210	(83,367)	120,806
Other income (expense):
Interest income	270	1,149	1,549	5,639
Interest expense, net of capitalized interest	(32,478)	(35,690)	(98,830)	(106,832)
Other, net	120	(254)	(2,904)	(582)
Total other expense	(32,088)	(34,795)	(100,185)	(101,775)
Income (loss) before income tax	(52,625)	20,415	(183,552)	19,031
Income tax benefit (provision)	2,696	(538)	3,016	(730)
Net income (loss)	(49,929)	19,877	(180,536)	18,301
Income attributable to non-controlling interests	(116)	(38)	(209)	(198)
Net income (loss) attributable to Mohegan Tribal Gaming Authority	(50,045)	19,839	(180,745)	18,103
Comprehensive income (loss):
Foreign currency translation adjustment	6,088	(4,041)	(1,076)	(8,346)
Other				44
Other comprehensive income (loss)	6,088	(4,041)	(1,076)	(8,302)
Other comprehensive (income) loss attributable to non-controlling interests	(229)	231	(21)	446
Other comprehensive income (loss) attributable to Mohegan Tribal Gaming Authority	5,859	(3,810)	(1,097)	(7,856)
Comprehensive income (loss) attributable to Mohegan Tribal Gaming Authority	(44,186)	16,029	(181,842)	10,247
Gaming
Revenues:
Net revenues	89,379	235,418	569,642	669,172
Operating costs and expenses:
Operating costs and expenses	41,834	135,238	330,200	389,872
Food and beverage
Revenues:
Net revenues	3,009	37,171	91,098	105,485
Operating costs and expenses:
Operating costs and expenses	5,075	29,080	79,160	81,611
Hotel
Revenues:
Net revenues	2,589	23,794	50,293	68,776
Operating costs and expenses:
Operating costs and expenses	4,296	12,052	26,611	31,881
Retail, entertainment and other
Revenues:
Net revenues	12,222	51,224	109,919	131,371
Operating costs and expenses:
Operating costs and expenses	$ 4,026	$ 22,934	$ 45,178	$ 63,203