DEBT (Tables)

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Summary of Net Carrying Amount of Debt

The net carrying amounts of the components of the Term Loan Facility consist of the following (in thousands):

	June 30, 2020
Principal amount	$	1,004,700
Unamortized debt discount	(24,419)
Unamortized debt issuance costs	(22,661)
Net carrying value	$	957,620

The net carrying amounts of the liability components of the Convertible Notes consist of the following (in thousands):

	June 30, 2020		December 31, 2019
Principal amount	$	300,000	$	300,000
Unaccreted debt discount	(19,358)		(2,691)
Unamortized debt issuance costs	(6,282)		(4,135)
Net carrying value	$	274,360	$	293,174

Schedule of Interest Expense Recognized

The following table presents the interest expense recognized related to the Term Loan Facility (in thousands):

	Three Months Ended
	June 30, 2020
Contractual interest expense	$	10,298
Accretion of debt discount	699
Amortization of debt issuance costs	663
Total	$	11,660

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Contractual interest expense	$	4,313	$	4,313	$	8,626	$	8,626
Accretion of debt discount	1,499		411		1,930		815
Amortization of debt issuance costs	593		632		1,256		1,255
Total	$	6,405	$	5,356	$	11,812	$	10,696