Convertible Notes

9 Months Ended

Sep. 30, 2017

The Company’s convertible notes are shown in the following table:



(In thousands)	As of September 30, 2017			As of December 31, 2016
1.125% Convertible Senior Notes due 2018	$	138,000		$	138,000
Unamortized discount	(6,014		)	(10,913		)
Unamortized debt issuance costs	(496		)	(920		)
Total convertible notes	$	131,490		$	126,167
Less current portion	131,490			—
Total long-term convertible notes	$	—		$	126,167

As of September 30, 2017, the 2018 Notes were reclassed from a long-term liability to a short-term liability as they will be due on August 15, 2018.

Interest expense related to the notes for the three and nine months ended September 30, 2017 and 2016 was as follows:



	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
	(In thousands)
2018 Notes coupon interest at a rate of 1.125%	$	388	$	388	1,164		1,164
2018 Notes amortization of discount and debt issuance costs at an additional effective interest rate of 5.5%	1,801		1,699		5,324		5,025
Total interest expense on convertible notes	$	2,189	$	2,087	$	6,488	$	6,189