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Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Goodwill, Gross |  |  |  |  |
Balance, beginning of period |  |  | $ 60,447 |  |
Foreign currency fluctuations |  |  | (3,027) |  |
Balance, end of period | $ 57,420 |  | 57,420 |  | $ 60,447
Accumulated Impairment Losses |  |  |  |  |
Balance, beginning of period |  |  | (43,644) |  |
Foreign currency fluctuations |  |  | 3,748 |  |
Balance, end of period | (39,896) |  | (39,896) |  | (43,644)
Goodwill, Net |  |  |  |  |
Balance, beginning of period |  |  | 16,803 |  |
Foreign currency fluctuations |  |  | 721 |  |
Balance, end of period | 17,524 |  | 17,524 |  | 16,803
Acquired Finite-lived Intangible Assets |  |  |  |  |
Original cost | 11,751 |  | 11,751 |  | 30,236
Accumulated amortization | (8,772) |  | (8,772) |  | (27,041)
Intangible Assets, Net | 2,979 |  | 2,979 |  | 3,195
Amortization expense | 112 | $ 516 | 224 | $ 1,036 |
Estimated aggregate amortization expense of Intangible Assets |  |  |  |  |
Remaining 2016 | 185 |  | 185 |  |
2017 | 316 |  | 316 |  |
2018 | 310 |  | 310 |  |
2019 | 310 |  | 310 |  |
2020 | 310 |  | 310 |  |
Thereafter | 1,548 |  | 1,548 |  |
Total | 2,979 |  | 2,979 |  |
Customer Lists and Service Contracts |  |  |  |  |
Acquired Finite-lived Intangible Assets |  |  |  |  |
Original cost | 6,550 |  | 6,550 |  | 19,781
Accumulated amortization | (6,090) |  | (6,090) |  | (19,232)
Intangible Assets, Net | 460 |  | $ 460 |  | $ 549
Weighted-average original life |  |  | 15 years |  | 15 years
Trade Name |  |  |  |  |
Acquired Finite-lived Intangible Assets |  |  |  |  |
Original cost |  |  |  |  | $ 3,859
Accumulated amortization |  |  |  |  | (3,859)
Intangible Assets, Net |  |  |  |  | $ 0
Weighted-average original life |  |  |  |  | 14 years
Technology |  |  |  |  |
Acquired Finite-lived Intangible Assets |  |  |  |  |
Original cost | 5,201 |  | $ 5,201 |  | $ 6,596
Accumulated amortization | (2,682) |  | (2,682) |  | (3,950)
Intangible Assets, Net | $ 2,519 |  | $ 2,519 |  | $ 2,646
Weighted-average original life |  |  | 13 years |  | 13 years

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