Benefit Plans Level 3 Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Actual return on plan assets:
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	$ 84,715	$ (23,622)
Defined Benefit Plan, Plan Assets, Amount	1,096,238	982,206	$ 1,121,784
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	31	(1)
Defined Benefit Plan, Purchases, Total	91	80
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	75	(91)
Defined Benefit Plan, Plan Assets, Amount	$ 1,972	$ 1,775	$ 1,787