Debt Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Carrying Values of Debt Agreements

The following table reflects the carrying values of the debt agreements as of December 31, 2019 and December 31, 2018:

	As of December 31,
	2019			2018
	(in thousands)
Liability component:
Principal amount—Cash Collateralized Revolving Credit Agreement	$	20,300		$	—
Less: unamortized debt issuance costs	(219		)	—
Less: current portion of long-term debt	—			—
Long-term debt, less current portion—Cash Collateralized Revolving Credit Agreement	$	20,081		$	—
Principal amount—Second Amendment to Amended and Restated Loan and Security Agreement	—			49,167
Less: unamortized debt issuance costs	—			(1,896		)
Less: current portion of long-term debt	—			(10,000		)
Long-term debt, less current portion—Second Amendment to Amended and Restated Loan and Security Agreement	$	—		$	37,271
Principal amount—Capital Lease Agreement	9,549			3,538
Less: current portion of long-term debt	(4,472		)	(1,370		)
Long-term debt, less current portion—Capital Lease Agreement	$	5,077		$	2,168
Total long-term debt, less current portion	$	25,158		$	39,439

Schedule of Contractual Future Repayments

Contractual future repayments for the above as of December 31, 2019 are as follows:

	Principal		Interest		Total
	(in thousands)
2020	$	4,472	$	1,210	$	5,682
2021	3,759		992		4,751
2022	21,618		794		22,412
2023	—		—		—
Total	$	29,849	$	2,996	$	32,845