Pensions and Other Benefit Programs (Components of Net Periodic Benefit Cost (Income)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Pension Plans | United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 24	$ 26
Interest cost	11,141	10,745
Expected return on plan assets	(17,863)	(19,478)
Amortization of prior service (credit) cost	(11)	(15)
Amortization of net actuarial loss	8,232	9,638
Net periodic benefit cost (income)	1,523	916
Contributions to benefit plans	1,138	1,015
Defined Benefit Pension Plans | Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	355	395
Interest cost	3,634	2,961
Expected return on plan assets	(7,205)	(7,984)
Amortization of prior service (credit) cost	68	67
Amortization of net actuarial loss	1,821	2,345
Net periodic benefit cost (income)	(1,327)	(2,216)
Contributions to benefit plans	8,221	8,696
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	179	224
Interest cost	940	961
Expected return on plan assets	0	0
Amortization of prior service (credit) cost	0	32
Amortization of net actuarial loss	87	1,078
Net periodic benefit cost (income)	1,206	2,295
Contributions to benefit plans	$ 4,158	$ 3,519