Benefit Plans - Change in Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Pension and Supplemental Executive Retirement Plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	$ 235,612	$ 250,674
Actual Return on Plan Assets	4,719	28,981
Company Contributions	23,313	384
Plan Participants' Contributions	0	0
Benefit Payments from Fund	(13,985)	(13,549)
Benefit and Settlement Payments Paid Directly by Company	(313)	(384)
Settlement Payments from Fund	(9,130)	(30,494)
Other Adjustment	0	0
Fair Value of Plan Assets at End of Year	240,216	235,612
Other Postretirement Benefit Plan
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	134,371	111,154
Actual Return on Plan Assets	25,699	26,703
Company Contributions	0	0
Plan Participants' Contributions	240	311
Benefit Payments from Fund	(3,296)	(3,439)
Benefit and Settlement Payments Paid Directly by Company	0	0
Settlement Payments from Fund	0	0
Other Adjustment	(410)	(358)
Fair Value of Plan Assets at End of Year	$ 156,604	$ 134,371