Benefit Plan Schedule of components of net periodic benefit cost and other amounts recognized in OCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Defined Benefit Plan, Service Cost	$ (6,236)	$ (9,749)	$ (9,916)
Defined Benefit Plan, Interest Cost	(6,523)	(5,705)	(5,359)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	14,143	17,798	15,731
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Immediate Recognition of Actuarial Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	(48)	15	(2,220)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	1,336	2,359	(1,764)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax	10,549	(1,109)	34,019
Defined Benefit Plan, Amortization of Gain (Loss)	48	(15)	2,220
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax	10,597	(1,124)	36,239
Total Recognized In Net Benefit Cost And Other Comprehensive Loss Income	$ 11,933	$ 1,235	$ 34,475