Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2017	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax Credits and Adjustments	$ 4,900			$ 15,200	$ 5,600
Component of income tax benefit (expense) in the consolidated statement of operations
Current federal income tax benefit	(2,800)			(1,900)	(1,400)
Current state income tax benefit (expense)	(3,000)			(1,000)	(2,000)
Current income tax benefit	(5,800)			(2,900)	(3,400)
Deferred federal income tax benefit	(86,300)			(28,700)	(35,900)
Deferred state income tax benefit	(17,300)			(12,100)	(3,100)
Deferred income tax benefit	(103,600)			(40,800)	(39,000)
Federal income tax benefit	(89,100)			(30,600)	(37,300)
State income tax benefit	(20,300)			(13,100)	(5,100)
Income tax benefit	$ (109,400)			$ (43,700)	$ (42,400)
Effective Income Tax Rate Reconciliation, Percent		37.70%	35.00%	29.30%	33.40%