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Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Long-term debt $ 50,000  
Unamortized debt discount (4,087)  
Long-term debt, net of debt discount $ 45,913 $ 22,777