Summary of Significant Accounting Policies, (As Restated for fiscal 2014 and 2013) - Schedule of Estimated Fair Value and Principal Amount of Outstanding Debt (Details) - USD ($) $ in Millions	Nov. 30, 2015	Nov. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 751.5	$ 920.4
Principal Amount	652.0	782.2
Term Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	93.8	98.8
Principal Amount	93.8	98.8
7.125% Second-Priority Senior Secured Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	480.1	483.6
Principal Amount	460.0	460.0
4 1/16% Convertible Subordinated Debentures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	164.0	248.2
Principal Amount	84.6	133.6
Delayed Draw Term Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	13.0	89.0
Principal Amount	13.0	89.0
Other Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0.6	0.8
Principal Amount	$ 0.6	$ 0.8