Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2019

Long-Term Debt [Abstract]

Schedule of Long-term Debt Instruments

Debt, net of discounts and deferred financing costs, consisted of the following:

	September 30, 2019		December 31, 2018
	(in thousands)
2023 Convertible Notes	$	460,000	$	460,000
2026 Convertible Notes		230,000		—
Long-term debt, gross		690,000		460,000
Less: Unamortized debt discounts and fees		164,661		88,750
Long-term debt, net		525,339		371,250