XML 258 R46.htm IDEA: XBRL DOCUMENT v3.8.0.1
Operations and Summary of Significant Accounting Policies - Amortizable Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Changes in gross carrying amount of finite-lived intangible assets      
Gross carrying amount, balance at the beginning of the year $ 51,442    
Accumulated amortization, balance at the beginning of the year (28,578)    
Intangible assets, net carrying amount, beginning of period 22,864    
Acquisition 9,260    
Amortization (6,200) $ (6,000) $ (6,100)
Foreign exchange 16 (39)  
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net 0 0  
Gross carrying amount, balance at the end of the year 54,537 51,442  
Accumulated amortization, balance at the end of the year (25,211) (28,578)  
Intangible assets, net carrying amount, end of period 29,326 22,864  
Reclassifications of goodwill 189 439  
Estimated future amortization of intangible assets      
2018 5,352    
2019 5,260    
2020 5,230    
2021 4,751    
2022 2,859    
Thereafter 5,258    
Total 28,710    
Patents      
Changes in gross carrying amount of finite-lived intangible assets      
Gross carrying amount, balance at the beginning of the year 1,718 1,513  
Accumulated amortization, balance at the beginning of the year (528) (379)  
Intangible assets, net carrying amount, beginning of period 1,190 1,134  
Acquisition 800    
Amortization (187) (149)  
Reclassifications   (212)  
Foreign exchange 2 (7)  
Removal of fully amortized asset, gross (170)    
Accumulated amortization of removal of fully amortized asset 170    
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net 0    
Gross carrying amount, balance at the end of the year 2,350 1,718 1,513
Accumulated amortization, balance at the end of the year (545) (528) (379)
Intangible assets, net carrying amount, end of period 1,805 1,190 1,134
Noncompete Agreements Trademarks and Other [Member]      
Changes in gross carrying amount of finite-lived intangible assets      
Gross carrying amount, balance at the beginning of the year 6,727 10,578  
Accumulated amortization, balance at the beginning of the year (4,100) (7,203)  
Intangible assets, net carrying amount, beginning of period 2,627 3,375  
Acquisition 9,260 1,212  
Amortization (2,495) (2,040)  
Reclassifications   (119)  
Foreign exchange 16 (39)  
Removal of fully amortized asset, gross (3,778) (5,143)  
Accumulated amortization of removal of fully amortized asset 3,778 5,143  
Gross carrying amount, balance at the end of the year 12,225 6,727 10,578
Accumulated amortization, balance at the end of the year (2,817) (4,100) (7,203)
Intangible assets, net carrying amount, end of period 9,408 2,627 3,375
Unpatented Technology      
Changes in gross carrying amount of finite-lived intangible assets      
Gross carrying amount, balance at the beginning of the year 21,162 21,604  
Accumulated amortization, balance at the beginning of the year (9,003) (8,656)  
Intangible assets, net carrying amount, beginning of period 12,159 12,948  
Amortization (1,976) (2,058)  
Reclassifications   (1,512)  
Foreign exchange 505 (243)  
Removal of fully amortized asset, gross   (1,711)  
Accumulated amortization of removal of fully amortized asset   1,711  
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net   0  
Gross carrying amount, balance at the end of the year 21,667 21,162 21,604
Accumulated amortization, balance at the end of the year (10,979) (9,003) (8,656)
Intangible assets, net carrying amount, end of period 10,688 12,159 12,948
Customer Relationships      
Changes in gross carrying amount of finite-lived intangible assets      
Gross carrying amount, balance at the beginning of the year 21,217 21,242  
Accumulated amortization, balance at the beginning of the year (14,945) (13,152)  
Intangible assets, net carrying amount, beginning of period 6,272 8,090  
Acquisition 1,091 0  
Amortization (1,574) (1,793)  
Reclassifications 626 (46)  
Foreign exchange 394 (71)  
Removal of fully amortized asset, gross (5,650)    
Accumulated amortization of removal of fully amortized asset 5,650    
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net 0    
Gross carrying amount, balance at the end of the year 17,678 21,217 21,242
Accumulated amortization, balance at the end of the year (10,869) (14,945) (13,152)
Intangible assets, net carrying amount, end of period 6,809 6,272 $ 8,090
North America      
Changes in gross carrying amount of finite-lived intangible assets      
Gross carrying amount, balance at the beginning of the year 23,562    
Accumulated amortization, balance at the beginning of the year (13,811)    
Intangible assets, net carrying amount, beginning of period 9,751    
Gross carrying amount, balance at the end of the year 30,775 23,562  
Accumulated amortization, balance at the end of the year (13,732) (13,811)  
Intangible assets, net carrying amount, end of period 17,043 9,751  
Reclassifications of goodwill (3) $ 439  
Europe | Customer Relationships      
Changes in gross carrying amount of finite-lived intangible assets      
Reclassifications 600    
Europe | Other Assets [Member]      
Changes in gross carrying amount of finite-lived intangible assets      
Reclassifications of Intangible Assets to other Non Current Assets $ (600)    
Minimum      
Amortizable Intangible assets      
Finite-Lived Intangible Asset, Useful Life 3 years    
Maximum      
Amortizable Intangible assets      
Finite-Lived Intangible Asset, Useful Life 21 years