Debt (Tables)

12 Months Ended

Dec. 31, 2020

Debt

Schedule of debt extinguishment

	December 31,
	2020
	(in thousands)
Debt principal balance	$	75,000
Plus: early payment penalties		3,757
Reacquisition price of debt	$	78,757
Debt principal balance	$	75,000
Less: unamortized debt discount		(2,091)
Net carrying amount at extinguishment date	$	72,909
Loss on debt extinguishment	$	5,848

Summary of costs of liability and equity components

	(in thousands)
		Amount		Equity Component		Debt Component
Debt Discount	$	8,625	$	2,568	$	6,057
Debt Issuance Cost		558		166		392
Total	$	9,183	$	2,734	$	6,449

Schedule of outstanding Convertible Notes

	December 31,
	2020
	(in thousands)
Liability Component
Outstanding Principal	$	287,500
Unamortized debt discount and debt issuance cost		(85,007)
Net carrying amount	$	202,493

Summary of interest expense

	December 31,
	2020
	(in thousands)
Cash interest expense
Contractual interest expense	$	4,582
Non-cash interest expense
Amortization of debt discount and debt issuance cost		7,048
Total interest expense	$	11,630