Pensions and Other Benefit Programs (Components of Net Periodic Benefit (Income) Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 65	$ 92	$ 205	$ 277
Interest cost	1,042	1,090	3,120	3,361
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)	(620)	(506)	(1,842)	(1,093)
Net periodic benefit (income) cost	487	676	1,483	2,545
Contributions to benefit plans	1,936	2,423	8,874	10,024
United States | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	12	19	36
Interest cost	13,070	14,468	40,115	44,400
Expected return on plan assets	(18,427)	(21,551)	(55,727)	(65,369)
Amortization of prior service (credit) cost	(5)	(5)	(15)	(15)
Amortization of net actuarial loss (gain)	4,974	4,758	15,117	14,702
Net periodic benefit (income) cost	(382)	(2,318)	(491)	(6,246)
Contributions to benefit plans	1,461	1,221	4,490	3,542
Foreign | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	290	189	859	561
Interest cost	5,987	5,298	17,524	15,666
Expected return on plan assets	(6,784)	(6,557)	(19,897)	(19,409)
Amortization of prior service (credit) cost	79	76	230	223
Amortization of net actuarial loss (gain)	2,329	1,968	6,821	5,804
Net periodic benefit (income) cost	1,901	974	5,537	2,845
Contributions to benefit plans	$ 553	$ 329	$ 8,715	$ 7,707