Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Term Loan

The Term Loan consists of the following (in thousands):

	March 31, 2020			December 31, 2019
Principal	$	47,500		$	47,500
Less: unamortized debt discount and debt issuance costs	(589		)	(962		)
Net carrying amount	$	46,911		$	46,538

Interest Expense Summary

The following table sets forth total interest expense recognized related to the Term Loan (in thousands):

	Three Months Ended March 31,
	2020		2019
Contractual interest expense	$	1,151	$	1,180
Amortization of debt discount	333		333
Amortization of debt issuance costs	40		40
Total interest expense	$	1,524	$	1,553

The following table sets forth total interest expense recognized related to the Convertible Notes (in thousands):

	Three Months Ended March 31,
	2020		2019
Contractual interest expense	$	618	$	1,446
Amortization of debt discount	1,252		1,956
Amortization of debt issuance costs	72		114
Total interest expense	$	1,942	$	3,516

Convertible Debt

The Convertible Notes consist of the following (in thousands):

	March 31, 2020			December 31, 2019
Liability component:
Principal	$	44,968		$	105,125
Less: unamortized debt discount and debt issuance costs	(738		)	(3,791		)
Net carrying amount	$	44,230		$	101,334