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Stock-Based Compensation (Activity Stock Options and Stock Awards) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Nov. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total intrinsic value of stock options on date exercised $ 2,523 $ 1,340 $ 1,388
Total fair value of restricted stock units and deferred stock units on date vested 18,102 17,046 16,573
Deferred Stock Unit      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of restricted stock units and deferred stock units on date vested 2,084 1,547 1,853
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of restricted stock units and deferred stock units on date vested $ 16,018 $ 15,499 $ 14,720