CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statements of Changes in Capital
Total capital at beginning of period	$ (188,945)	$ (132,108)	$ (133,242)	$ (67,989)
Net income (loss)	59,563	25,902	45,513	(16,832)
Foreign currency translation adjustment	(29,723)	216	(43,139)	10,660
Contribution from Mohegan Tribe		2,814	325	2,814
Distributions to Mohegan Tribe	(17,500)	(15,000)	(45,500)	(39,000)
Distributions to Salishan Company, LLC related to the Cowlitz Project	(78)	(159)	(640)	(420)
Other				(7,568)
Total capital at end of period	(176,683)	(118,335)	(176,683)	(118,335)
Total Capital Attributable to Mohegan Tribal Gaming Authority
Statements of Changes in Capital
Total capital at beginning of period	(191,268)	(133,272)	(135,152)	(75,469)
Net income (loss)	59,364	25,367	44,901	(17,243)
Foreign currency translation adjustment	(29,723)	216	(43,139)	9,284
Contribution from Mohegan Tribe		2,814	325	2,814
Distributions to Mohegan Tribe	(17,500)	(15,000)	(45,500)	(39,000)
Distributions to Salishan Company, LLC related to the Cowlitz Project	(78)	(159)	(640)	(420)
Total capital at end of period	(179,205)	(120,034)	(179,205)	(120,034)
Retained Deficit
Statements of Changes in Capital
Total capital at beginning of period	(175,787)	(142,563)	(133,087)	(75,692)
Net income (loss)	59,364	25,367	44,901	(17,243)
Distributions to Mohegan Tribe	(17,500)	(12,186)	(45,175)	(36,186)
Distributions to Salishan Company, LLC related to the Cowlitz Project	(78)	(159)	(640)	(420)
Total capital at end of period	(134,001)	(129,541)	(134,001)	(129,541)
Additional Paid-in Capital
Statements of Changes in Capital
Total capital at beginning of period	0	0	0	0
Contribution from Mohegan Tribe		2,814	325	2,814
Distributions to Mohegan Tribe		(2,814)	(325)	(2,814)
Total capital at end of period	0	0	0	0
Accumulated Other Comprehensive Income (Loss)
Statements of Changes in Capital
Total capital at beginning of period	(15,481)	9,291	(2,065)	223
Foreign currency translation adjustment	(29,723)	216	(43,139)	9,284
Total capital at end of period	(45,204)	9,507	(45,204)	9,507
Non-controlling Interests
Statements of Changes in Capital
Total capital at beginning of period	2,323	1,164	1,910	7,480
Net income (loss)	199	535	612	411
Foreign currency translation adjustment				1,376
Other				(7,568)
Total capital at end of period	$ 2,522	$ 1,699	$ 2,522	$ 1,699