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Business Combinations - Summary of Unaudited Pro Forma Financial Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Business Combinations [Abstract]    
Revenue $ 365,786 $ 273,616
Net loss $ (35,401) $ (65,106)
Basic and diluted net (loss) income per share (in dollars per share) $ (0.31) $ (0.71)