Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Component of income tax benefit (expense) in the consolidated statement of operations
Current federal income tax benefit		$ (1,400)	$ 100	$ 0
Current state income tax benefit (expense)		(2,000)	(1,900)	1,600
Current income tax benefit		(3,400)	(1,800)	1,600
Deferred federal income tax benefit		(35,900)	646,000	0
Deferred state income tax benefit		(3,100)	179,200	0
Deferred income tax benefit		(39,000)	825,200	0
Federal income tax benefit		(37,300)	646,100	0
State income tax benefit		(5,100)	177,300	1,600
Income tax benefit	$ 824,200	$ (42,400)	$ 823,400	$ 1,600