XML 36 R23.htm IDEA: XBRL DOCUMENT v3.24.3
Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
The components of net periodic benefit costs for the defined benefit plans and other postretirement benefits for the three and nine months ended September 30, 2024 and 2023 are as follows:
 Pension BenefitsOther Benefits
Three months ended September 30,
 2024202320242023
Service cost$1,666 1,892 $166 160 
Interest cost3,613 3,557 295 317 
Expected return on assets(4,463)(3,442)(267)(217)
Amortization of actuarial (gain) loss
(18)554 (161)(87)
Amortization of prior service cost4 4 — — 
Total$802 2,565 $33 173 
 Pension BenefitsOther Benefits
Nine months ended September 30,
 2024202320242023
Service cost$4,997 5,676 $498 480 
Interest cost10,839 10,672 886 951 
Expected return on assets(13,389)(11,580)(801)(651)
Amortization of actuarial (gain) loss
(53)1,662 (483)(263)
Amortization of prior service cost11 11 — — 
Total$2,405 6,441 $100 517