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Employee Benefit And Retirement Plans-Additional Information (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 12 Months Ended
May 31, 2014
May 31, 2013
Nov. 30, 2013
Compensation and Retirement Disclosure [Abstract]      
Pension Contributions $ 11.3 $ 37.7 $ 42.7