v3.26.1
Employee Retirement Plans - Schedule of Components of Net Periodic Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Total retirement plan expenses $ 7,659 $ 6,319 $ 12,900 $ 10,903
Non-Qualified Deferred Compensation Plan (DCP)        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 339 303 678 606
Interest cost 1,036 965 2,072 1,930
Amortization of unrecognized net loss 181 0 362 0
Amortization of unrecognized past service cost 18 18 36 36
Net periodic benefit cost - Defined Benefit component 1,574 1,286 3,148 2,572
Non-Qualified Deferred Incentive Compensation - Defined Contribution component 2,271 1,262 2,071 739
Total retirement plan expenses 3,845 2,548 5,219 3,311
Postretirement Health Benefit Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 2 2 4 4
Interest cost 74 74 148 148
Amortization of unrecognized net loss (78) (87) (156) (174)
Net periodic benefit cost - Defined Benefit component (2) (11) (4) (22)
Total retirement plan expenses $ (2) $ (11) $ (4) $ (22)