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Employee Benefit Plans - Pension Plans - Components of Net Periodic Pension Cost and Other Amounts Recognized In OCI (Details) - Pension Plans - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Components of net periodic pension cost      
Service cost $ 10,396 $ 11,440 $ 8,391
Interest cost 6,683 6,070 6,855
Expected return on plan assets (15,454) (13,859) (12,362)
Amortization of prior service cost (2,257) (2,322) (2,322)
Amortization of the net loss 1,525 4,156 3,695
Net periodic pension cost, defined benefit pension plans 893 5,485 4,257
Changes in the defined benefit pension plans’ plan assets and benefit obligations recognized in other comprehensive income      
Net (gain)/loss (28,222) (36,552) 11,521
Amortization of prior service cost 2,257 2,322 2,323
Total recognized in other comprehensive income (25,965) (34,230) 13,844
Total recognized in net periodic pension cost and other comprehensive income $ (25,072) $ (28,745) $ 18,101