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Debt - Schedule of Outstanding Debt Obligations (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Total long-term debt $ 285,137 $ 277,034
Less: current maturities 0 0
Long-term debt, net of current maturities 285,137 277,034
Convertible Debt | 2022 Convertible Notes    
Debt Instrument [Line Items]    
Total long-term debt $ 285,137 $ 277,034