Pension and Other Postretirement Benefits (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pensions [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	$ 557,804	$ 517,656
Service cost	6,547	6,269	$ 5,425
Interest cost	12,749	15,084	18,239
Amendments	862	1,014
Actuarial (gain) loss	(14,481)	40,521
Benefits paid	(29,508)	(28,471)
Transfers in	2,468	767
Plan curtailments	(603)	(138)
Plan settlements	(2,464)	(2,165)
Participant contributions	1,171	1,127
Foreign exchange rate changes	(2,329)	6,140
Benefit obligation, ending balance	532,216	557,804	517,656
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	502,778	462,507
Actual return on plan assets	33,094	59,662
Company contributions	4,197	4,437
Participant contributions	1,171	1,127
Benefits paid	(29,508)	(28,471)
Plan settlements	(2,464)	(2,165)
Transfers in	2,468	767
Foreign exchange rate changes	(1,807)	4,914
Fair value of plan assets, ending balance	509,929	502,778	462,507
Funded/(underfunded) status, December 31	(22,287)	(55,026)
Pensions [Member] | U.S. [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	461,296	430,625
Service cost	4,378	4,134
Interest cost	11,963	14,015
Amendments	862	0
Actuarial (gain) loss	(10,734)	37,709
Benefits paid	(25,009)	(25,049)
Transfers in	0	0
Plan curtailments	0	(138)
Plan settlements	0	0
Participant contributions	0	0
Foreign exchange rate changes	0	0
Benefit obligation, ending balance	442,756	461,296	430,625
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	413,898	380,242
Actual return on plan assets	30,880	55,813
Company contributions	2,794	2,892
Participant contributions	0	0
Benefits paid	(25,009)	(25,049)
Plan settlements	0	0
Transfers in	0	0
Foreign exchange rate changes	0	0
Fair value of plan assets, ending balance	422,563	413,898	380,242
Funded/(underfunded) status, December 31	(20,193)	(47,398)
Pensions [Member] | Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	96,508	87,031
Service cost	2,169	2,135
Interest cost	786	1,069
Amendments	0	1,014
Actuarial (gain) loss	(3,747)	2,812
Benefits paid	(4,499)	(3,422)
Transfers in	2,468	767
Plan curtailments	(603)	0
Plan settlements	(2,464)	(2,165)
Participant contributions	1,171	1,127
Foreign exchange rate changes	(2,329)	6,140
Benefit obligation, ending balance	89,460	96,508	87,031
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	88,880	82,265
Actual return on plan assets	2,214	3,849
Company contributions	1,403	1,545
Participant contributions	1,171	1,127
Benefits paid	(4,499)	(3,422)
Plan settlements	(2,464)	(2,165)
Transfers in	2,468	767
Foreign exchange rate changes	(1,807)	4,914
Fair value of plan assets, ending balance	87,366	88,880	82,265
Funded/(underfunded) status, December 31	(2,094)	(7,628)
Other Postretirement Benefits [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	33,104	33,239
Service cost	103	81	70
Interest cost	819	1,041	1,345
Actuarial (gain) loss	(2,115)	950
Benefits paid	(2,690)	(3,203)
Participant contributions	589	960
Foreign exchange rate changes	29	36
Benefit obligation, ending balance	29,839	33,104	33,239
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	0	0
Company contributions	2,101	2,243
Participant contributions	589	960
Benefits paid	(2,690)	(3,203)
Fair value of plan assets, ending balance	0	0	$ 0
Funded/(underfunded) status, December 31	$ (29,839)	$ (33,104)