Benefit Plans - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 234,154	$ 240,216
Pension Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	39,233	25,834
Pension Plan | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	194,921	214,382
Pension Plan | Domestic Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,468	3,479
Pension Plan | Domestic Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,468	3,479
Pension Plan | Domestic Mutual Funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Pension Plan | U.S. government securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	36,765	22,355
Pension Plan | U.S. government securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	36,765	22,355
Pension Plan | U.S. government securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Pension Plan | Corporate debt securities and other
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	112,945	135,739
Pension Plan | Corporate debt securities and other | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Pension Plan | Corporate debt securities and other | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	112,945	135,739
Pension Plan | Non-government foreign debt securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	16,487	20,665
Pension Plan | Non-government foreign debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Pension Plan | Non-government foreign debt securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	16,487	20,665
Pension Plan | Municipal bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	18,974	11,607
Pension Plan | Municipal bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Pension Plan | Municipal bonds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	18,974	11,607
Pension Plan | Pooled Equity Accounts
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	46,515	46,371
Pension Plan | Pooled Equity Accounts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	0	0
Pension Plan | Pooled Equity Accounts | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	46,515	46,371
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	182,436	156,604	$ 134,371
Other Postretirement Benefit Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	182,436	156,604
Other Postretirement Benefit Plan | Domestic Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	148,737	130,586
Other Postretirement Benefit Plan | International mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 33,699	$ 26,018