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Pension and Employee Benefits Plans - Defined Contribution Plan - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2017
Compensation And Retirement Disclosure [Abstract]      
Employer contribution to defined contribution plan $ 47,441 $ 38,531 $ 33,876
Deferred compensation liability $ 5,389 $ 6,146