Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Schedule of Cash, Cash Equivalents and Restricted Cash (Details)

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Basis of Presentation - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]        
Cash and cash equivalents $ 68,601 $ 82,505 $ 245,735  
Restricted cash included in prepaid expenses and other current assets 0   158  
Restricted cash included in other non-current assets 168   168  
Total cash, cash equivalents and restricted cash $ 68,769 $ 82,755 $ 246,061 $ 289,671