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Postretirement Benefits - Schedule of Amounts Recognized in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net amounts recognized at year end	$ 26,194	$ (2,727)	$ 1,570	$ (131,239)
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net loss (gain)	(28,720)	(227)
Prior service cost	6,636	6,494
Net amounts recognized at year end	$ (22,084)	$ 6,267