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Debt-Textuals (Details) - USD ($)
$ in Millions
3 Months Ended
Feb. 28, 2016
Mar. 01, 2015
Debt Instruments [Line Items]    
Weighted-average interest rate 6.26% 7.65%
Senior revolving credit facility [Member]    
Debt Instruments [Line Items]    
Unused availability $ 739.7  
Line of Credit Facility, Current Borrowing Capacity 798.2  
Letters of credit and other credit usage $ (58.5)  
6.875% senior notes due 2022 [Member] | Senior notes [Member]    
Debt Instruments [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 6.875%  
5.00% Senior Notes, Due 2025 [Member] | Senior notes [Member]    
Debt Instruments [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 5.00%