CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statements of Changes in Capital
Total capital at beginning of period	$ 309,169	$ 362,652
Net income (loss)	28,690	(52,241)
Foreign currency translation adjustment	14,747	(18,310)
Distributions to Mohegan Tribe	(12,000)	(12,000)
Distributions from Salishan-Mohegan, LLC to Mohegan Tribe	(390)
Total capital at end of period	340,216	280,101
Retained Earnings
Statements of Changes in Capital
Total capital at beginning of period	196,645	249,102
Net income (loss)	29,209	(51,622)
Distributions to Mohegan Tribe	(12,000)	(12,000)
Distributions from Salishan-Mohegan, LLC to Mohegan Tribe	(390)
Total capital at end of period	213,464	185,480
Accumulated Other Comprehensive Income (Loss)
Statements of Changes in Capital
Total capital at beginning of period	1,125	5,106
Foreign currency translation adjustment	6,429	(8,897)
Total capital at end of period	7,554	(3,791)
Mohegan Tribal Gaming Authority Total Capital
Statements of Changes in Capital
Total capital at beginning of period	197,770	254,208
Net income (loss)	29,209	(51,622)
Foreign currency translation adjustment	6,429	(8,897)
Distributions to Mohegan Tribe	(12,000)	(12,000)
Distributions from Salishan-Mohegan, LLC to Mohegan Tribe	(390)
Total capital at end of period	221,018	181,689
Non-controlling Interests
Statements of Changes in Capital
Total capital at beginning of period	111,399	108,444
Net income (loss)	(519)	(619)
Foreign currency translation adjustment	8,318	(9,413)
Total capital at end of period	$ 119,198	$ 98,412