Income Taxes - Components of Company's Income Tax (Benefit) Provision from Continuing Operations (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Current
U.S. federal	$ (1.4)	$ 10.9	$ 2.0
State and local	1.0	3.8	4.2
Current income tax (benefit) provision	(0.4)	14.7	6.2
Deferred
U.S. federal	(143.4)	3.2	(0.4)
State and local	(50.1)	1.0	0.3
Deferred income tax (benefit) provision	(193.5)	4.2	(0.1)
Income tax (benefit) provision	$ (193.9)	$ 18.9	$ 6.1

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.