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Goodwill and Intangible Assets - Summary of Changes in the Carrying Amount of Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Roll Forward]    
Balance as of the beginning of the period $ 37,482 $ 38,541
Business combination 101,703 0
Foreign currency translation adjustments (454) (1,059)
Balance as of the end of the period $ 138,731 $ 37,482