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Loss Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Numerator - Basic    
Net loss $ (26,663) $ (2,408)
Less: Net loss attributable to noncontrolling interest 0 1,636
Net loss available to common shareholders (26,663) (772)
Numerator - Diluted    
Diluted net loss available to common shareholders $ (26,663) $ (772)
Denominator    
Basic weighted average common shares (in shares) 222,564 155,244
Diluted weighted average common shares (in shares) 222,564 155,244
Loss per common share:    
Basic (in dollars per share) $ (0.12) $ 0.00
Diluted (in dollars per share) $ (0.12) $ 0.00
Approximate number of shares of potentially convertible preferred stock to common stock up until the time of conversion on August 26, 2016, unvested restricted stock units and stock to be issued pursuant to the employee stock purchase plan have been excluded from the computation of diluted loss per share as the effect would be anti-dilutive when the results from operations are at a net loss. 799 54,444