XML 81 R69.htm IDEA: XBRL DOCUMENT v3.24.2
Employee Benefit Plans - Components of Net Periodic Benefit Cost (Credit) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Defined Benefit Pension Plans        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 839 $ 858 $ 1,698 $ 1,701
Interest cost 5,030 5,237 10,083 10,435
Expected return on plan assets (4,678) (5,097) (9,359) (10,177)
Amortization of prior service cost 47 38 96 75
Recognized actuarial gain (loss) 1,943 1,467 3,886 2,932
Net periodic benefit cost (credit) 3,181 2,503 6,404 4,966
Postretirement Benefit Plans        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost 45 45 90 90
Amortization of prior service cost (509) (509) (1,019) (1,018)
Recognized actuarial gain (loss) (48) (57) (95) (114)
Net periodic benefit cost (credit) $ (512) $ (521) $ (1,024) $ (1,042)