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Retirement Plans - Schedule of Components of Net Periodic Benefit Cost (Details) - Defined benefit pension plan - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]        
Interest cost $ 3,888 $ 3,867 $ 11,664 $ 11,599
Expected return on plan assets (5,382) (5,774) (16,147) (17,319)
Amortization of unrecognized net actuarial loss 955 750 2,865 2,251
Total net periodic pension cost (benefit) $ (539) $ (1,157) $ (1,618) $ (3,469)