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Debt (Schedule of Debt) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Revolving credit facility $ 157,820 $ 163,957
Debt:    
Total debt 4,178 5,248
Less: current portion (4,178) (5,248)
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Revolving credit facility $ 157,820 163,957
Debt:    
Debt, maturity June 2024  
Outstanding credit lines interest rate 3.59%  
Suzhou Short-Term Credit Line [Member]    
Debt Instrument [Line Items]    
Revolving credit facility $ 2,986 3,149
Debt:    
Debt, maturity October 2022 - June 2023  
Maximum [Member] | Suzhou Short-Term Credit Line [Member]    
Debt:    
Short-term debt, weighted average interest rate 4.00%  
Minimum [Member] | Revolving Credit Facility [Member]    
Debt:    
Long-term debt, weighted average interest rate 3.59%  
Minimum [Member] | Suzhou Short-Term Credit Line [Member]    
Debt:    
Outstanding credit lines interest rate 3.70%  
Sweden Short-Term Note [Member]    
Debt Instrument [Line Items]    
Revolving credit facility $ 1,192 $ 2,099
Debt:    
Debt, maturity July 2022  
Outstanding credit lines interest rate 3.25%