Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Schedule of convertible notes payable

Total convertible notes payable consisted of the following at (in thousands):

	March 31, 2021		December 31, 2020
Principal amount of Notes	$	325,000	$	325,000
Unamortized debt issuance costs	(2,610)		(2,965)
Total convertible notes payable	$	322,390	$	322,035

Schedule of interest expense

Interest expense incurred in connection with the Notes consisted of the following (in thousands):

	Three Months Ended March 31,
	2020		2019
Coupon interest at 3.75%	$	3,047	$	3,047
Amortization of debt issuance costs	356		356
Total interest expense on Notes	$	3,403	$	3,403