v3.26.3
Employee Retirement Plans - Schedule of Components of Net Periodic Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Total retirement plan expenses $ 5,640 $ 6,177 $ 18,539 $ 17,079
Non-Qualified Deferred Compensation Plan (DCP)        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 339 303 1,017 909
Interest cost 1,036 965 3,108 2,895
Amortization of unrecognized net loss 181 0 543 0
Amortization of unrecognized past service cost 18 18 54 54
Net periodic benefit cost - Defined Benefit component 1,574 1,286 4,722 3,858
Non-Qualified Deferred Incentive Compensation - Defined Contribution component 302 1,157 2,373 1,896
Total retirement plan expenses 1,876 2,443 7,095 5,754
Postretirement Health Benefit Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 1 2 5 6
Interest cost 74 74 222 222
Amortization of unrecognized net loss (78) (86) (234) (260)
Net periodic benefit cost - Defined Benefit component (3) (10) (7) (32)
Total retirement plan expenses $ (3) $ (10) $ (7) $ (32)