Pensions and Other Benefit Programs (Components of Net Periodic Benefit Cost (Income)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 92	$ 89
Interest cost	1,136	1,305
Expected return on plan assets	0	0
Amortization of prior service (credit) cost	0	0
Amortization of net actuarial loss (gain)	(295)	(356)
Net periodic benefit (income) cost	933	1,038
Contributions to benefit plans	3,700	3,778
United States | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	12	10
Interest cost	14,966	16,089
Expected return on plan assets	(21,909)	(21,613)
Amortization of prior service (credit) cost	(5)	(5)
Amortization of net actuarial loss (gain)	4,972	4,417
Net periodic benefit (income) cost	(1,964)	(1,102)
Contributions to benefit plans	1,069	1,127
Foreign | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	188	194
Interest cost	5,201	5,222
Expected return on plan assets	(6,450)	(7,344)
Amortization of prior service (credit) cost	74	70
Amortization of net actuarial loss (gain)	1,923	505
Net periodic benefit (income) cost	936	(1,353)
Contributions to benefit plans	$ 6,998	$ 15,033