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Goodwill and Intangible Assets - Intangible Assets - Finite Life (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 99,350 | $ 100,022
Accumulated Amortization | 38,622 | 25,065
Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 1,439 | 1,456
Accumulated Amortization | 1,439 | 1,456
Employment Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 733 | 733
Accumulated Amortization | 733 | 677
Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 15,867 | 15,867
Accumulated Amortization | 6,360 | 4,027
Customer Lists [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 77,497 | 77,497
Accumulated Amortization | 26,041 | 17,756
Non-compete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 1,118 | 1,118
Accumulated Amortization | 478 | 257
Tradename [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 1,390 | 1,390
Accumulated Amortization | 301 | 162
Backlog [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 4,270 | 4,270
Accumulated Amortization | 4,270 | 1,423
Foreign Currency Adjustments [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | (2,964) | (2,309)
Accumulated Amortization | $ (1,000) | $ (693)

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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