Convertible Senior Notes and Capped Call Transactions (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Carrying Amount of Convertible Debt and Related Interest

The net carrying amount of the liability component of the Notes was as follows (in thousands):

	As of December 31, 2019
Principal	$	230,000
Unamortized discount	(45,295		)
Unamortized issuance costs	(5,693		)
Net carrying amount	$	179,012

The net carrying amount of the equity component of the Notes was as follows (in thousands):

	As of December 31, 2019
Proceeds allocated to the conversion options (debt discount)	$	52,900
Issuance costs	(1,986		)
Net carrying amount	$	50,914

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

	For the Year Ended December 31, 2019
Contractual interest expense	$	1,438
Amortization of issuance costs	956
Amortization of debt discount	7,605
Total interest expense	$	9,999