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Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016
Goodwill, Gross |  |  |
Balance, beginning of period | $ 58,397 |  |
Additions | 19 |  |
Foreign currency fluctuations | 986 |  |
Balance, end of period | 59,402 |  | $ 58,397
Accumulated Impairment Losses |  |  |
Balance, beginning of period | (37,332) |  |
Foreign currency fluctuations | (614) |  |
Balance, end of period | (37,946) |  | (37,332)
Goodwill, Net |  |  |
Balance, beginning of period | 21,065 |  |
Additions | 19 |  |
Foreign currency fluctuations | 372 |  |
Balance, end of period | 21,456 |  | 21,065
Acquired Finite-lived Intangible Assets |  |  |
Original cost | 17,879 |  | 15,152
Accumulated amortization | (9,110) |  | (8,692)
Intangible Assets, Net | 8,769 |  | 6,460
Purchase of Intangible Assets | $ 2,500 | $ 0 |
Finite-Lived Intangible Asset, Useful Life | 5 years |  |
Amortization expense | $ 244 | $ 112 |
Estimated aggregate amortization expense of Intangible Assets |  |  |
Remaining 2017 | 813 |  |
2018 | 1,083 |  |
2019 | 1,083 |  |
2020 | 1,083 |  |
2021 | 1,083 |  |
Thereafter | 3,624 |  |
Total | 8,769 |  |
Customer Lists |  |  |
Acquired Finite-lived Intangible Assets |  |  |
Original cost | 10,722 |  | 8,016
Accumulated amortization | (6,192) |  | (5,948)
Intangible Assets, Net | $ 4,530 |  | $ 2,068
Weighted-average original life | 10 years |  | 15 years
Trade Name |  |  |
Acquired Finite-lived Intangible Assets |  |  |
Original cost | $ 2,000 |  | $ 2,000
Accumulated amortization | (89) |  | 0
Intangible Assets, Net | $ 1,911 |  | $ 2,000
Weighted-average original life | 15 years |  | 15 years
Technology |  |  |
Acquired Finite-lived Intangible Assets |  |  |
Original cost | $ 5,157 |  | $ 5,136
Accumulated amortization | (2,829) |  | (2,744)
Intangible Assets, Net | $ 2,328 |  | $ 2,392
Weighted-average original life | 13 years |  | 13 years

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