Convertible Notes (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of convertible and non-recourse notes activity

		Principal Balance Outstanding		Carrying Value
		September 30,		September 30,		December 31,
Description	Maturity Date	2016		2016		2015
(In thousands)
Convertible Notes
February 2018 Notes	February 1, 2018	$	246,447	$	234,895	$	228,862
March 2015 Term Loan	February 15, 2016	$	—	—		24,966
Total				$	234,895	$	253,828

Schedule of interest expense on Series 2012 Notes

Interest expense for the Series 2012 Notes on the Company's Condensed Consolidated Statements of Income was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In thousands)	2016		2015		2016		2015
Contractual coupon interest	$	—	$	—	$	—	$	80
Amortization of debt issuance costs	—		—		—		13
Amortization of debt discount	—		—		—		76
Total	$	—	$	—	$	—	$	169

Schedule of interest expense for May 2015 Notes

Interest expense for the May 2015 Notes on the Condensed Consolidated Statements of Income was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In thousands)	2016		2015		2016		2015
Contractual coupon interest	$	—	$	—	$	—	$	1,938
Amortization of debt issuance costs	—		—		—		435
Amortization of debt discount	—		—		—		1,815
Total	$	—	$	—	$	—	$	4,188

Schedule of carrying value and unamortized discount on February 2018 Notes [Table Text Block]

The carrying value and unamortized discount of the February 2018 Notes were as follows:

(In thousands)	September 30, 2016			December 31, 2015
Principal amount of the February 2018 Notes	$	246,447		$	246,447
Unamortized discount of liability component	(11,552		)	(17,585		)
Net carrying value of the February 2018 Notes	$	234,895		$	228,862

Schedule of interest expense for February 2018 Notes [Table Text Block]

Interest expense for the February 2018 Notes on the Company's Condensed Consolidated Statements of Income was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In thousands)	2016		2015		2016		2015
Contractual coupon interest	$	2,465	$	3,000	$	7,393	$	9,000
Amortization of debt issuance costs	457		510		1,337		1,599
Amortization of debt discount	1,591		1,830		4,696		5,353
Total	$	4,513	$	5,340	$	13,426	$	15,952