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Commitments and Contingencies - Narrative - Lease Commitments and Income (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Nov. 30, 2013
Operating Leased Assets [Line Items]      
Rent expense $ 18.5 $ 23.7 $ 20.1
Lease income $ 6.3 $ 6.2 $ 5.7
Minimum [Member]      
Operating Leased Assets [Line Items]      
Lease renewal options range 1 year    
Maximum [Member]      
Operating Leased Assets [Line Items]      
Lease renewal options range 15 years