Pensions and Other Benefit Programs (Components of Net Periodic Benefit (Income) Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 70	$ 93	$ 140	$ 185
Interest cost	1,040	1,135	2,078	2,271
Expected return on plan assets	0	0	0	0
Amortization of prior service (credit) cost	0	0	0	0
Amortization of net actuarial loss (gain)	(618)	(292)	(1,222)	(587)
Net periodic benefit (income) cost	492	936	996	1,869
Contributions to benefit plans	3,236	3,901	6,938	7,601
United States | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	7	12	13	24
Interest cost	13,523	14,966	27,045	29,932
Expected return on plan assets	(18,650)	(21,909)	(37,300)	(43,818)
Amortization of prior service (credit) cost	(5)	(5)	(10)	(10)
Amortization of net actuarial loss (gain)	5,072	4,972	10,143	9,944
Net periodic benefit (income) cost	(53)	(1,964)	(109)	(3,928)
Contributions to benefit plans	1,416	1,252	3,029	2,321
Foreign | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	291	184	569	372
Interest cost	5,929	5,167	11,537	10,368
Expected return on plan assets	(6,731)	(6,402)	(13,113)	(12,852)
Amortization of prior service (credit) cost	78	73	151	147
Amortization of net actuarial loss (gain)	2,309	1,913	4,492	3,836
Net periodic benefit (income) cost	1,876	935	3,636	1,871
Contributions to benefit plans	$ 806	$ 380	$ 8,162	$ 7,378