Convertible Notes Payable - Schedule of Future Minimum Payments on Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Aug. 14, 2017
Debt Instrument [Line Items]
Long Term Debt	$ 195,591	$ 179,806
Convertible debt \| 3.00% Convertible notes
Debt Instrument [Line Items]
2020	9,150
2021	9,150
2022	9,150
2023	9,150
2024 and thereafter	314,150
Total minimum payments	350,750
Less: interest	(45,750)
Less: unamortized discount	(109,409)
Less: current portion	0
Long Term Debt	$ 195,591	$ 179,806	$ 166,300

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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