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Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Credit) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Defined Benefit Pension Plans        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 842 $ 839 $ 1,672 $ 1,698
Interest cost 5,110 5,030 10,189 10,083
Expected return on plan assets (4,385) (4,678) (8,754) (9,359)
Amortization of prior service cost (credit) 50 47 99 96
Recognized actuarial gain (loss) 2,175 1,943 4,340 3,886
Net periodic benefit cost (credit) 3,792 3,181 7,546 6,404
Postretirement Benefit Plans        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost 36 45 72 90
Amortization of prior service cost (credit) (499) (509) (999) (1,019)
Recognized actuarial gain (loss) (73) (48) (146) (95)
Net periodic benefit cost (credit) $ (536) $ (512) $ (1,073) $ (1,024)