ORGANIZATION (Details)	9 Months Ended															1 Months Ended	9 Months Ended
	Jun. 30, 2014 Mohegan Tribe of Indians of Connecticut acre	Jun. 30, 2014 Mohegan Tribe of Indians of Connecticut Salishan-Mohegan, LLC	Jun. 30, 2014 Mohegan Tribal Gaming Authority acre	Jun. 30, 2014 Mohegan Tribal Gaming Authority Downs Racing, L.P., Backside, L.P., Mill Creek Land, L.P. and Northeast Concessions, L.P.	Jun. 30, 2014 Mohegan Basketball Club, LLC WNBA, LLC	Jun. 30, 2014 Mohegan Commercial Ventures-PA, LLC Downs Racing, L.P., Backside, L.P., Mill Creek Land, L.P. and Northeast Concessions, L.P.	Jun. 30, 2014 Downs Racing, L.P. acre	Jun. 30, 2014 Mohegan Ventures-Northwest, LLC Salishan-Mohegan, LLC	Jun. 30, 2014 Salishan-Mohegan, LLC Salishan-Mohegan Two, LLC	Jun. 30, 2014 Mohegan Ventures Wisconsin, LLC Wisconsin Tribal Gaming, LLC	Jun. 30, 2014 MTGA Gaming, LLC Mohegan Gaming & Hospitality, LLC	Jun. 30, 2014 Mohegan Gaming & Hospitality, LLC Mohegan Resorts, LLC	Jun. 30, 2014 Mohegan Resorts, LLC Mohegan Resorts Mass, LLC	Jun. 30, 2014 Mohegan Resorts, LLC Mohegan Resorts New York, LLC and Mohegan Gaming New York, LLC	Jun. 30, 2014 Mohegan Gaming Advisors Mohegan New Jersey Entities	Oct. 31, 2012 Mohegan Gaming Advisors Resorts Casino Hotel in Atlantic City, New Jersey	Jun. 30, 2014 Mohegan Gaming Advisors Mohegan MA Entities	Jun. 30, 2014 Mohegan Gaming Advisors Mohegan PA Entities	Jun. 30, 2014 Mohegan Gaming Advisors MGA Holdings FL, LLC	Jun. 30, 2014 MGA Holding MA, LLC MGA Palmer Partners, LLC	Jun. 30, 2014 MGA Palmer Partners, LLC Mohegan Sun Massachusetts, LLC	Jun. 30, 2014 MGA Holdings FL, LLC MGA Miami, LLC
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		9.85%		99.99%	4.20%			49.15%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%	10.00%	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%
General partnership interest percentage						0.01%