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Goodwill and Intangible Assets, net - Intangible Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 50,971 | $ 38,979
Accumulated Amortization | (27,543) | (23,168)
Foreign Currency Translation | (687) | 718
Net | 22,741 | 16,529
Subscriber Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 43,212 | 34,350
Accumulated Amortization | (23,284) | (19,592)
Foreign Currency Translation | (623) | 614
Net | 19,305 | 15,372
Non-competition Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 2,560 | 2,499
Accumulated Amortization | (2,247) | (2,058)
Foreign Currency Translation | (28) | 45
Net | 285 | 486
Technology and Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 5,199 | 2,130
Accumulated Amortization | (2,012) | (1,518)
Foreign Currency Translation | (36) | 59
Net | $ 3,151 | $ 671

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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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