Convertible Senior Notes (Tables)

6 Months Ended

Jun. 30, 2018

Convertible Senior Notes

Schedule of net proceeds from the Convertible Senior Notes

	Amount
	(in thousands)
Principal amount	$	100,000
Less initial purchasers' discount		(3,250)
Less cost of related capped call and common stock forward		(43,500)
Less other issuance costs		(894)
Net proceeds	$	52,356

Schedule of Convertible Senior Notes

Principal amounts:	At June 30, 2018
Principal	$	100,000
Unamortized debt discount (1)		(37,900)
Unamortized debt issuance costs (1)		(2,288)
Net carrying amount	$	59,812
Carrying amount of the equity component (2)	$	37,702

1) Included in the unaudited interim consolidated balance sheet within Convertible Senior Notes, net and amortized over the remaining life of the Convertible senior notes using the effective interest rate method.

2) Included in the unaudited interim consolidated balance sheet within additional paid-in capital, net of $1.7 million in equity issuance costs and associated income tax benefit.