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Pension and Employee Benefits Plans - Defined Contribution Plan - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2019
Aug. 31, 2018
Aug. 31, 2019
Aug. 31, 2018
Nov. 30, 2018
Compensation And Retirement Disclosure [Abstract]          
Employer contribution to defined contribution plan $ 11,052 $ 10,574 $ 34,596 $ 29,939  
Deferred compensation liability 6,240   6,240   $ 6,146
Defined benefit and postemployment plans,net periodic pension costs 6,204 1,473 11,678 4,268  
Defined benefit and postemployment plans, contributions 2,225 $ 766 5,437 $ 2,881  
Unfunded liabilities related to defined pension and postemployment plans $ (85,722)   $ (85,722)   $ (89,001)