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Benefit Plans - Additional Information (Detail) - USD ($)
12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
U.S Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Estimated future employer contributions in 2016 $ 3,000,000  
Target allocation of plan assets for 2016 in equities 50.00%  
Target allocation of plan assets for 2016 in fixed income 50.00%  
Percentage of equity portfolio investment 5.00%  
Percentage of equity investment of the market value of the portfolio 10.00%  
Percentage of fixed income portfolio invested in investment grade securities rated BBB-/Baa3, including cash and cash equivalents 75.00%  
German Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Investment in insurance contract $ 15,300,000 $ 18,100,000
Contributions made to pension plan $ 0 $ 0