CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 883,259	$ 2,221,239	$ 1,861,787
Other comprehensive income (loss), net of tax:
Foreign currency translation (losses) gains during period, pre-tax amount	41,234	(90,036)	22,659
Foreign currency translation (losses) gains during period, tax (expense) benefit	0	0	0
Foreign currency translation (losses) gains during period, after-tax amount	41,234	(90,036)	22,659
Pension and post-retirement benefit plans:
Net actuarial gain (loss) and prior service cost, pre-tax amount	(3,089)	(18,617)	(39,454)
Net actuarial gain (loss) and prior service cost, tax (expense) benefit	446	4,252	9,191
Net actuarial gain (loss) and prior service cost, after-tax amount	(2,643)	(14,365)	(30,263)
Reclassification to earnings, pre-tax amount	22,545	25,055	28,612
Reclassification to earnings, tax (expense) benefit	(5,425)	(5,988)	(6,895)
Reclassification to earnings, after-tax amount	17,120	19,067	21,717
Cash flow hedges:
(Losses) gains on cash flow hedging derivatives, before tax	(6,373)	11,036	954
(Losses) gains on cash flow hedging derivatives, tax (expense) benefit	1,575	(5,989)	(30)
(Losses) gains on cash flow hedging derivatives, after tax	(4,798)	5,047	924
Reclassification to earnings, pre-tax amount	7,427	3,931	10,866
Reclassification to earnings, tax (expense) benefit	(1,800)	2,544	(3,648)
Reclassification to earnings, after-tax amount	5,627	6,475	7,218
Total other comprehensive income (loss), pre-tax amount	61,744	(68,631)	23,637
Total other comprehensive income (loss), tax (expense) benefit	(5,204)	(5,181)	(1,382)
Total other comprehensive income (loss), after-tax amount	56,540	(73,812)	22,255
Comprehensive income	$ 939,799	$ 2,147,427	$ 1,884,042