v3.25.4
Pension Plans and Other Postretirement Benefits - Financial Assets Accounted for at Fair Value on Recurring Basis (Details) - Pension Plans - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 545,054 $ 539,712
Fair Value, Inputs, Level 1, 2 and 3 | Domestic Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 140 78,124
Fair Value, Inputs, Level 1, 2 and 3 | International Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 152,912 78,124
Fair Value, Inputs, Level 1, 2 and 3 | Fixed income    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 368,588 318,036
Fair Value, Inputs, Level 1, 2 and 3 | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 15,338 8,540
Quoted Prices in Active Markets for Identical Items (Level 1)    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 490,845 442,684
Quoted Prices in Active Markets for Identical Items (Level 1) | Domestic Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 140 78,124
Quoted Prices in Active Markets for Identical Items (Level 1) | International Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 143,654 69,471
Quoted Prices in Active Markets for Identical Items (Level 1) | Fixed income    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 331,713 286,549
Quoted Prices in Active Markets for Identical Items (Level 1) | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 15,338 8,540
Quoted Prices in Active Markets for Similar Items (Level 2)    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 46,133 40,140
Quoted Prices in Active Markets for Similar Items (Level 2) | Domestic Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Quoted Prices in Active Markets for Similar Items (Level 2) | International Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 9,258 8,653
Quoted Prices in Active Markets for Similar Items (Level 2) | Fixed income    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 36,875 31,487
Quoted Prices in Active Markets for Similar Items (Level 2) | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Unobservable Inputs (Level 3)    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Unobservable Inputs (Level 3) | Domestic Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Unobservable Inputs (Level 3) | International Equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Unobservable Inputs (Level 3) | Fixed income    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Unobservable Inputs (Level 3) | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0 0
Absolute Return Measured at Net Asset Value    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 8,076 $ 56,888