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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Consolidated Balance Sheets |  |
Accumulated depreciation of property and equipment (in dollars) | $ 12,495 | $ 13,353
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized | 250,000,000 | 250,000,000
Common stock, shares issued | 142,691,986 | 125,027,034
Common stock, shares outstanding | 142,691,986 | 125,027,034
Foreign currency translation adjustment, tax | $ 1,293 |

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