CONVERTIBLE NOTES AND CREDIT FACILITY (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Convertible Debt

	March 31, 2020			December 31, 2019
Carrying amount of equity component	$	39,508		$	39,508
Principal amount of the Notes	86,250			86,250
Unamortized debt discount	(39,378		)	(40,902		)
Net carrying amount	$	46,872		$	45,348

Interest Income and Interest Expense Disclosure

Interest expense related to the Notes for the quarter ended March 31,2020 was $2.3 million, which is comprised of the amortization of debt discount and debt issuance costs and the contractual coupon interest as follows (in thousands):

	Three Months Ended
	March 31, 2020
Interest expense related to contractual coupon interest	$	809
Interest expense related to amortization of the debt discount	1,524
	$	2,333