Annual report pursuant to Section 13 and 15(d)

Nature Of Operations And Accounting Policies (Schedule Of Intangible Assets) (Details)

v3.20.4
Nature Of Operations And Accounting Policies (Schedule Of Intangible Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, beginning balance $ 37,047 $ 37,047  
Acquired intangible assets 3,078 0  
Foreign currency translation 111    
Intangible assets, ending balance 40,236 37,047 $ 37,047
Changes in Accumulated Amortization [Roll Forward]      
Accumulated amortization, beginning balance (16,051) (12,496)  
Amortization expense (4,062) (3,555) (4,700)
Accumulated amortization, ending balance $ (20,113) (16,051) (12,496)
Weighted average remaining contractual life, in years 5 years 10 months 24 days    
Trademark/ Tradenames      
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, beginning balance $ 3,324 3,324  
Acquired intangible assets 0 0  
Foreign currency translation 0    
Intangible assets, ending balance 3,324 3,324 3,324
Changes in Accumulated Amortization [Roll Forward]      
Accumulated amortization, beginning balance (2,644) (2,312)  
Amortization expense (332) (332)  
Accumulated amortization, ending balance $ (2,976) (2,644) (2,312)
Weighted average remaining contractual life, in years 1 year    
Customer Relationships      
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, beginning balance $ 15,365 15,365  
Acquired intangible assets 3,078 0  
Foreign currency translation 111    
Intangible assets, ending balance 18,554 15,365 15,365
Changes in Accumulated Amortization [Roll Forward]      
Accumulated amortization, beginning balance (7,710) (6,428)  
Amortization expense (1,789) (1,282)  
Accumulated amortization, ending balance $ (9,499) (7,710) (6,428)
Weighted average remaining contractual life, in years 5 years 8 months 12 days    
Acquired Contractual Rights      
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, beginning balance $ 18,358 18,358  
Acquired intangible assets 0 0  
Foreign currency translation 0    
Intangible assets, ending balance 18,358 18,358 18,358
Changes in Accumulated Amortization [Roll Forward]      
Accumulated amortization, beginning balance (5,697) (3,756)  
Amortization expense (1,941) (1,941)  
Accumulated amortization, ending balance $ (7,638) $ (5,697) $ (3,756)
Weighted average remaining contractual life, in years 6 years 2 months 12 days