Exit Costs - Restructuring Reserve (Details)
$ in Thousands
6 Months Ended
May 31, 2016
USD ($)
Restructuring Reserve [Roll Forward]  
Expenses $ 1,854
Severance Costs [Member]  
Restructuring Reserve [Roll Forward]  
Balance at November 30, 2015 4,805
Expenses 279
Payments (5,084)
Liability at May 31, 2016 0
Other Costs [Member]  
Restructuring Reserve [Roll Forward]  
Balance at November 30, 2015 0
Expenses 300
Payments (300)
Liability at May 31, 2016 0
Contract Termination Costs [Member]  
Restructuring Reserve [Roll Forward]  
Balance at November 30, 2015 0
Expenses 1,234
Payments (1,234)
Liability at May 31, 2016 0
Restructuring Costs [Member]  
Restructuring Reserve [Roll Forward]  
Balance at November 30, 2015 4,805
Expenses 1,813
Payments (6,618)
Liability at May 31, 2016 0
Accelerated Amortization of Restricted Stock and Restricted Cash Awards [Member]  
Restructuring Reserve [Roll Forward]  
Expenses $ 41