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Employee Benefit Plans Benefit Plans (Additional Information) (Details)
$ in Millions
12 Months Ended
Nov. 30, 2016
USD ($)
Spot Rate 4.68%
Ultimate Spot Rate 5.07%
Pension Plan [Member]  
Pension Contributions $ 6.2
Minimum [Member]  
Spot Rate 1.14%
Future Spot Rate 1.35%
Maximum [Member]  
Spot Rate 5.07%
Future Spot Rate 5.07%