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Redeemable Noncontrolling Interest - Summary of Changes in Redeemable Noncontrolling Interest (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Noncontrolling Interest [Abstract]        
Beginning balance     $ 5,909  
Net loss attributable to redeemable noncontrolling interest $ (368) $ (128) (644) $ (289)
Adjustment to the redemption value     530  
Foreign currency translation adjustment     (364)  
Ending balance $ 5,431   $ 5,431