ORGANIZATION (Details)	9 Months Ended			1 Months Ended	5 Months Ended	9 Months Ended								1 Months Ended		5 Months Ended	1 Months Ended			9 Months Ended	1 Months Ended	9 Months Ended
	Jun. 30, 2013 segment	Jun. 30, 2013 Mohegan Tribe of Indians of Connecticut acre	Jun. 30, 2013 Mohegan Tribe of Indians of Connecticut Salishan-Mohegan, LLC	Feb. 28, 2013 Mohegan Tribe of Indians of Connecticut Mohegan Gaming & Hospitality, LLC	Feb. 28, 2013 Mohegan Tribe of Indians of Connecticut Mohegan Gaming & Hospitality, LLC	Jun. 30, 2013 Mohegan Tribal Gaming Authority acre	Jun. 30, 2013 Mohegan Tribal Gaming Authority Downs Racing, L.P., Backside, L.P., Mill Creek Land, L.P. and Northeast Concessions, L.P.	Jun. 30, 2013 Mohegan Basketball Club, LLC WNBA, LLC	Jun. 30, 2013 Mohegan Commercial Ventures-PA, LLC Downs Racing, L.P., Backside, L.P., Mill Creek Land, L.P. and Northeast Concessions, L.P.	Jun. 30, 2013 Downs Racing, L.P. acre	Jun. 30, 2013 Mohegan Ventures-Northwest, LLC Salishan-Mohegan, LLC	Jun. 30, 2013 Salishan-Mohegan, LLC Salishan-Mohegan Two, LLC	Jun. 30, 2013 Mohegan Ventures Wisconsin, LLC Wisconsin Tribal Gaming, LLC	Mar. 31, 2013 MTGA Gaming, LLC Mohegan Gaming & Hospitality, LLC	Feb. 28, 2013 MTGA Gaming, LLC Mohegan Gaming & Hospitality, LLC	Feb. 28, 2013 MTGA Gaming, LLC Mohegan Gaming & Hospitality, LLC	Mar. 31, 2013 Mohegan Gaming & Hospitality, LLC Mohegan Resorts, LLC	Mar. 31, 2013 Mohegan Resorts, LLC Mohegan Resorts Mass, LLC	Mar. 31, 2013 Mohegan Resorts, LLC Mohegan Resorts New York, LLC and Mohegan Gaming New York, LLC	Jun. 30, 2013 Mohegan Gaming Advisors Mohegan New Jersey Entities	Oct. 31, 2012 Mohegan Gaming Advisors Resorts Casino Hotel in Atlantic City, New Jersey	Jun. 30, 2013 Mohegan Gaming Advisors Mohegan MA Entities	Jun. 30, 2013 Mohegan Gaming Advisors Mohegan PA Entities
Entity Information [Line Items]
Size of tribe reservation (in acres)		544
Size of gaming and entertainment complex (in acres)						185				400
Membership or limited partnership interest percentage			7.85%	51.00%	51.00%		99.99%	4.20%			49.15%	100.00%	100.00%	100.00%	49.00%	49.00%	100.00%	100.00%	100.00%	100.00%	10.00%	100.00%	100.00%
General partnership interest percentage									0.01%
Number of operating segments	2