Income Taxes (Component Of Income Taxes Benefit (Provision)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Income Tax Disclosure [Abstract]
Federal, current	$ (343,635)	$ (261,306)	$ (2,495)
State, current	(52,420)	3,340	(5,740)
Current income tax benefit (expense)	(396,055)	(257,966)	(8,235)
Deferred federal income tax benefit (expense)	12,872	(42,847)	(207,588)
Deferred state and local income tax benefit (expense)	(7,233)	(40,278)	38,808
Deferred income tax benefit (expense)	5,639	(83,125)	(168,780)
Benefit (provision) for income taxes	$ (390,416)	$ (341,091)	$ (177,015)