CONVERTIBLE SENIOR NOTES AND CAPPED CALL (Tables)

3 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Convertible Debt

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

	June 30, 2019			March 31, 2019
Principal	$	287,500		$	287,500
Unamortized debt discount	(67,730		)	(70,876		)
Unamortized issuance costs	(562		)	(589		)
Net carrying amount	$	219,208		$	216,035

Interest Income and Interest Expense Disclosure

Interest expense related to the Notes was as follows (in thousands):

	Three Months Ended June 30, 2019
Contractual interest expense	$	359
Amortization of debt discount	3,146
Amortization of issuance costs	26
Total interest expense	$	3,531