Pension and Other Postretirement Benefits (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pensions [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	$ 402,306	$ 532,216
Service cost	2,589	5,689	$ 6,547
Interest cost	19,415	14,108	12,749
Amendments	(2,553)	121
Actuarial loss (gain)	8,600	(118,255)
Benefits paid	(33,639)	(27,474)
Transfers in	1,989	2,694
Plan curtailments	(8,039)	708
Plan settlements	(12,799)	(4,527)
Special termination benefits	0	395	0
Participant contributions	906	1,034
Foreign exchange rate changes	4,101	(4,403)
Benefit obligation, ending balance	382,876	402,306	532,216
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	374,920	509,929
Actual return on plan assets	38,253	(105,848)
Company contributions	9,724	4,094
Participant contributions	906	1,034
Benefits paid	(33,639)	(27,474)
Plan settlements	(12,799)	(4,527)
Transfers in	1,989	2,694
Foreign exchange rate changes	4,212	(4,982)
Fair value of plan assets, ending balance	383,566	374,920	509,929
Funded/(underfunded) status, December 31	690	(27,386)
Pensions [Member] | U.S. [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	341,595	442,756
Service cost	1,646	3,869
Interest cost	17,343	13,144
Amendments	0	121
Actuarial loss (gain)	3,615	(94,516)
Benefits paid	(31,097)	(24,882)
Transfers in	0	0
Plan curtailments	(7,602)	708
Plan settlements	0	0
Special termination benefits	0	395
Participant contributions	0	0
Foreign exchange rate changes	0	0
Benefit obligation, ending balance	325,500	341,595	442,756
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	304,881	422,563
Actual return on plan assets	34,046	(95,573)
Company contributions	8,605	2,773
Participant contributions	0	0
Benefits paid	(31,097)	(24,882)
Plan settlements	0	0
Transfers in	0	0
Foreign exchange rate changes	0	0
Fair value of plan assets, ending balance	316,435	304,881	422,563
Funded/(underfunded) status, December 31	(9,065)	(36,714)
Pensions [Member] | Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	60,711	89,460
Service cost	943	1,820
Interest cost	2,072	964
Amendments	(2,553)	0
Actuarial loss (gain)	4,985	(23,739)
Benefits paid	(2,542)	(2,592)
Transfers in	1,989	2,694
Plan curtailments	(437)	0
Plan settlements	(12,799)	(4,527)
Special termination benefits	0	0
Participant contributions	906	1,034
Foreign exchange rate changes	4,101	(4,403)
Benefit obligation, ending balance	57,376	60,711	89,460
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	70,039	87,366
Actual return on plan assets	4,207	(10,275)
Company contributions	1,119	1,321
Participant contributions	906	1,034
Benefits paid	(2,542)	(2,592)
Plan settlements	(12,799)	(4,527)
Transfers in	1,989	2,694
Foreign exchange rate changes	4,212	(4,982)
Fair value of plan assets, ending balance	67,131	70,039	87,366
Funded/(underfunded) status, December 31	9,755	9,328
Other Postretirement Benefits [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	21,964	29,839
Service cost	39	77	103
Interest cost	1,122	808	819
Actuarial loss (gain)	(411)	(6,375)
Benefits paid	(2,390)	(2,597)
Special termination benefits	0	0	0
Participant contributions	98	141
Foreign exchange rate changes	19	71
Benefit obligation, ending balance	20,441	21,964	29,839
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	0	0
Company contributions	2,292	2,456
Participant contributions	98	141
Benefits paid	(2,390)	(2,597)
Fair value of plan assets, ending balance	0	0	$ 0
Funded/(underfunded) status, December 31	$ (20,441)	$ (21,964)