Benefit Plans - Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension and Supplemental Executive Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Company Service Cost	$ 0	$ 0	$ 7,153
Interest Cost	12,988	13,787	12,461
Expected Return on Assets	(14,576)	(13,517)	(18,064)
Amortization of Net Transition Obligation/(Asset)	0	0	0
Amortization of Net Prior Service Cost/(Credit)	345	345	(163)
Amortization of Net Losses/(Gains)	2,091	2,185	5,726
Cost of Settlements and Curtailments	198	9,749	13,801
Net Periodic Benefit Cost (Benefit)	1,046	12,549	20,914
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Company Service Cost	1,668	1,497	1,307
Interest Cost	1,501	1,633	694
Expected Return on Assets	(9,974)	(8,235)	(10,502)
Amortization of Net Transition Obligation/(Asset)	0	0	0
Amortization of Net Prior Service Cost/(Credit)	1,813	1,861	489
Amortization of Net Losses/(Gains)	(1,523)	(150)	(3,103)
Cost of Settlements and Curtailments	0	0	0
Net Periodic Benefit Cost (Benefit)	$ (6,515)	$ (3,394)	$ (11,115)