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Acquisitions - Intangible Assets (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Oct. 05, 2015 | Mar. 27, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Developed technologies |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization Period (in years) |  |  | 5 years 6 months | 5 years 3 months
Trademarks and trade names |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization Period (in years) |  |  | 9 years 2 months | 9 years 2 months
Customer relationships |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization Period (in years) |  |  | 8 years 4 months | 8 years 5 months
DigiCore/Ctrack |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets | $ 28,270 |  |  |
DigiCore/Ctrack | Developed technologies |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets | $ 10,170 |  |  |
Amortization Period (in years) | 6 years |  |  |
DigiCore/Ctrack | Trademarks and trade names |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets | $ 14,030 |  |  |
Amortization Period (in years) | 10 years |  |  |
DigiCore/Ctrack | Customer relationships |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets | $ 4,070 |  |  |
Amortization Period (in years) | 5 years |  |  |
FW |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets |  | $ 18,880 |  |
FW | Developed technologies |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets |  | $ 3,660 |  |
Amortization Period (in years) |  | 6 years |  |
FW | Trademarks and trade names |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets |  | $ 4,700 |  |
Amortization Period (in years) |  | 10 years |  |
FW | Customer relationships |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets |  | $ 8,500 |  |
Amortization Period (in years) |  | 10 years |  |
FW | In-process research and development |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |
Indefinite-lived intangible assets |  | $ 2,020 |  |

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