v3.8.0.1

Other (Expenses) Income - Summary of Other (Expenses) Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Income Tax Contingency [Line Items] |  |  |
Income tax expense | $ (7,511) | $ (3,406) | $ (1,977)
Foreign exchange gain | 1,413 | 613 | (292)
Other income | 120 | 50 | 167
Total | (5,978) | (2,743) | 1,318
Warrant [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Gain on initial recognition of stock purchase warrant | $ 0 | $ 0 | $ 3,420

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