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Debt - Schedule of Interest Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Debt Disclosure [Abstract]    
Contractual interest expense $ 13,430 $ 9,893
Amortization of debt issuance costs 995 989
Amortization of debt discount 88 6,987
Debt Instrument, Interest Expense, Total $ 14,513 $ 17,869