Pensions and Other Postretirement Benefit Plans (Schedule of Plan Benefit Obligations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year	$ 230,790	$ 245,800
Service cost	1,371	2,192	$ 2,279
Interest cost	4,917	5,467
Plan participants' contributions	132	175
Actuarial (gain)/loss	(46,995)	(7,163)
Benefits paid	(7,946)	(9,399)
Settlements and curtailments	(90,568)	(3,694)
Plan amendments and other	(25)	(122)
Foreign currency changes	(7,946)	(2,466)
Benefit obligation, end of year	83,730	230,790	245,800
Accumulated benefit obligation	$ 78,153	$ 223,320
Pension plans | United States
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.49%	2.63%
Compensation increase		0.00%
Pension plans | Foreign Plan
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.15%	2.41%
Compensation increase	3.08%	2.70%
Pension plans | Switzerland
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, end of year	$ 2,900
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Cash balance interest crediting rate	2.15%	0.25%
Other postretirement benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year	$ 44,884	$ 47,977
Service cost	114	132	200
Interest cost	1,221	1,103
Plan participants' contributions	0	0
Actuarial (gain)/loss	(6,658)	(995)
Benefits paid	(3,234)	(3,338)
Settlements and curtailments	0	0
Plan amendments and other	(605)	0
Foreign currency changes	(64)	5
Benefit obligation, end of year	35,658	44,884	$ 47,977
Accumulated benefit obligation	$ 0	$ 0
Other postretirement benefits | United States
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.55%	2.83%
Compensation increase		0.00%
Other postretirement benefits | Foreign Plan
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.20%	3.05%
Compensation increase	2.75%	2.75%
Other postretirement benefits | Switzerland
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Cash balance interest crediting rate	0.00%	0.00%