v3.25.4
Income Taxes - Schedule of Principal Components of the Company's Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Deferred income tax assets:    
Accruals not yet tax deductible $ 79,630 $ 144,331
Stock compensation 9,949 11,779
Net operating loss and tax credit carryforwards 94,910 82,027
Amortization of research and experimental costs 100,635 100,880
Other 62,299 62,889
Deferred tax assets gross 347,423 401,906
Valuation allowance (94,580) (59,313)
Deferred tax assets net 252,843 342,593
Deferred income tax liabilities:    
Depreciation, tax in excess of book (25,879) (51,107)
Pension and postretirement healthcare plan obligations (121,258) (90,589)
Withholding tax (5,246) (15,915)
Other (32,174) (26,045)
Deferred tax liabilities net (184,557) (183,656)
Total $ 68,286 $ 158,937