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Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Nov. 30, 2019
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Balance, beginning of year $ 6,219 $ 4,993 $ 5,787
Tax positions related to current period 71 0 0
Tax positions related to a prior period (820)    
Tax positions related to a prior period   539 110
Tax positions acquired 439 1,596 0
Settlements with tax authorities (168) (12) (181)
Lapses due to expiration of the statute of limitations (270) (897) (723)
Balance, end of year $ 5,471 $ 6,219 $ 4,993