Debt - Summary of Components of Debt Obligations (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total debt	$ 351,250,000	$ 316,250,000
Less: deferred debt discount	(30,912,000)	(35,393,000)
Less: deferred debt issue costs	(4,530,000)	(5,248,000)
Long-term debt, net	315,808,000	275,609,000
Additional paid-in capital	35,306,000	35,306,000
Discount attribution to equity	(1,175,000)	(1,175,000)
Equity component, net	34,131,000	34,131,000
Current portion of long-term debt	0	0
Convertible Note Due 2023
Debt Instrument [Line Items]
Total debt	316,250,000	316,250,000
Credit facility
Debt Instrument [Line Items]
Total debt	$ 35,000,000	$ 0