Convertible Notes (Tables)

12 Months Ended

Dec. 31, 2016

ReclassifiedUnamortizedDebtIssuanceCostsReportedInBalanceSheetTableTextBlock [Table Text Block]

The Company adopted ASU 2015-03 during the first quarter of 2016. Pursuant to the guidance in ASU 2015-03, the Company has reclassified unamortized debt issuance costs associated with the Company's 2018 Notes in the previously reported Consolidated Balance Sheet as of December 31, 2015, as follows:



(In thousands)	As presented December 31, 2015		Reclassifications			As adjusted December 31, 2015
Other assets	$	3,648	$	(1,483	)	$	2,165
Convertible notes, long-term	$	120,901	$	(1,483	)	$	119,418

Schedule of convertible notes

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



(Dollars in thousands)	As of December 31, 2016			As of December 31, 2015
1.125% Convertible Senior Notes due 2018	$	138,000		$	138,000
Unamortized discount	(10,913		)	(17,099		)
Unamortized debt issuance costs	(920		)	(1,483		)
Total convertible notes	$	126,167		$	119,418
Less current portion	—			—
Total long-term convertible notes	$	126,167		$	119,418

Schedule of interest expense on notes

Interest expense related to the notes for the years ended December 31, 2016, 2015 and 2014 was as follows:



	Years Ended December 31,
	2016		2015		2014
	(in thousands)
2018 Notes coupon interest at a rate of 1.125%	$	1,553	$	1,567	$	1,567
2018 Notes amortization of discount and debt issuance cost at an additional effective interest rate of 5.5%	6,749		6,372		6,019
2014 Notes coupon interest at a rate of 5%	—		—		3,929
2014 Notes amortization of discount at an additional effective interest rate of 11.7%	—		—		8,744
Total interest expense on convertible notes	$	8,302	$	7,939	$	20,259