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Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Aug. 07, 2018
Mar. 31, 2020
Mar. 31, 2019
Related Party Transaction [Line Items]      
Share-based compensation expense   $ 2,221 $ 274
Services Agreement | Michael Brauser-Former Executive Chairman      
Related Party Transaction [Line Items]      
Term of agreement, related party 1 year    
Renewal term of agreement, related party 1 year    
Consulting service fee monthly payment $ 30    
Consulting service fee recognized amount   90 90
Services Agreement | Michael Brauser-Former Executive Chairman | Restricted Stock Units (RSUs)      
Related Party Transaction [Line Items]      
Share-based compensation expense   $ 339 $ 0