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Benefit Plans Level 3 Rollforward (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Actual return on plan assets:      
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) $ (23,622) $ (32,262)  
Defined Benefit Plan, Plan Assets, Amount 982,206 1,121,784 $ 1,093,784
Real Asset Mutual Funds, Commodities | Fair Value, Inputs, Level 3 [Member]      
Actual return on plan assets:      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Fixed Income Mutual Funds, Insurance Contracts | Fair Value, Inputs, Level 3 [Member]      
Actual return on plan assets:      
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held (1) 26  
Defined Benefit Plan, Purchases, Total 80 70  
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) (91) (102)  
Defined Benefit Plan, Plan Assets, Amount $ 1,775 $ 1,787 $ 1,793