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Pensions and Other Postretirement Benefits (Reconciliation of The Benefit Obligation, Plan Assets and Funded Status) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Change in plan assets:      
Fair value of plan assets at beginning of year $ 16,248    
Fair value of plan assets at end of year 18,319 $ 16,248  
Pension Plans | United States      
Change in benefit obligation:      
Benefit obligation at beginning of year 2,050 2,626  
Service cost (adjusted for actual employee contributions) 0 0 $ 0
Interest cost 97 65 57
Actuarial loss/(gains) 59 (533)  
Benefits paid (108) (108)  
Curtailments and settlements 0 0  
Currency translation 0 0  
Benefit obligation at end of year 2,098 2,050 2,626
Change in plan assets:      
Fair value of plan assets at beginning of year 0 0  
Actual return on plan assets 0 0  
Company contributions 0 108  
Benefits paid 0 (108)  
Currency translation 0 0  
Fair value of plan assets at end of year 0 0 0
Funded status at end of year (2,098) (2,050)  
Pension Plans | Foreign Plan      
Change in benefit obligation:      
Benefit obligation at beginning of year 15,853 26,157  
Service cost (adjusted for actual employee contributions) 265 308 379
Interest cost 675 395 353
Actuarial loss/(gains) 6 (7,125)  
Benefits paid (573) (652)  
Curtailments and settlements (310) (567)  
Currency translation 551 (2,663)  
Benefit obligation at end of year 16,467 15,853 26,157
Change in plan assets:      
Fair value of plan assets at beginning of year 16,248 19,717  
Actual return on plan assets 855 (1,773)  
Company contributions 875 1,064  
Benefits paid (573) (652)  
Currency translation 914 (2,047)  
Fair value of plan assets at end of year 18,319 16,248 19,717
Funded status at end of year 1,852 395  
OPEB Plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 2,386 2,885  
Service cost (adjusted for actual employee contributions) 17 29 36
Interest cost 111 67 68
Contributions by participants 0 0  
Actuarial loss/(gains) 95 (453)  
Benefits paid (119) (142)  
Plan amendments and other 0 0  
Benefit obligation at end of year 2,490 2,386 2,885
Change in plan assets:      
Fair value of plan assets at beginning of year 0 0  
Company contributions 119 142  
Contributions by participants 0 0  
Benefits paid (119) (142)  
Fair value of plan assets at end of year 0 0 $ 0
Funded status at end of year $ (2,490) $ (2,386)