Document and Entity Information Document	6 Months Ended
	Mar. 31, 2013
Entity Registrant Name	MOHEGAN TRIBAL GAMING AUTHORITY
Entity Central Index Key	0001005276
Current Fiscal Year End Date	--09-30
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding	0