Convertible Notes (Tables)

3 Months Ended

Mar. 31, 2015

Debt Disclosure [Abstract]

Schedule of convertible and non-recourse notes activity

		Principal Balance Outstanding		Carrying Value
		March 31,		March 31,		December 31,
Description	Maturity Date	2015		2015		2014
(In thousands)
Convertible Notes
Series 2012 Notes	February 15, 2015	$	—	$	—	$	22,261
May 2015 Notes	May 1, 2015	$	155,050	154,592		153,235
February 2018 Notes	February 1, 2018	$	300,000	277,975		276,228
March 2015 Term Loan	February 15, 2016	$	100,000	99,393		—
Total				$	531,960	$	451,724

Schedule of carrying value and unamortized discount on Series 2012 Notes

The principal amount, carrying value and unamortized discount of our Series 2012 Notes were as follows:

(In thousands)	March 31, 2015		December 31, 2014
Principal amount of the Series 2012 Notes	$	—	$	22,337
Unamortized discount of liability component	—		(76		)
Total	$	—	$	22,261

Schedule of interest expense on Series 2012 Notes

Interest expense for our Series 2012 Notes on our Condensed Consolidated Statements of Income was as follows:

	Three Months Ended
	March 31,
(In thousands)	2015		2014
Contractual coupon interest	$	80	$	761
Amortization of debt issuance costs	13		870
Amortization of debt discount	76		980
Total	$	169	$	2,611

Schedule of carrying value and unamortized discount on May 2015 Notes

The carrying value and unamortized discount of our May 2015 Notes were as follows:

(In thousands)	March 31, 2015			December 31, 2014
Principal amount of the May 2015 Notes	$	155,050		$	155,050
Unamortized discount of liability component	(458		)	(1,815		)
Total	$	154,592		$	153,235

Schedule of interest expense for May 2015 Notes

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

	Three Months Ended
	March 31,
(In thousands)	2015		2014
Contractual coupon interest	$	1,454	$	1,455
Amortization of debt issuance costs	326		315
Amortization of debt discount	1,357		1,261
Total	$	3,137	$	3,031

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

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

(In thousands)	March 31, 2015			December 31, 2014
Principal amount of the February 2018 Notes	$	300,000		$	300,000
Unamortized discount of liability component	(22,025		)	(23,772		)
Total	$	277,975		$	276,228

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

Interest expense for our February 2018 Notes on our Condensed Consolidated Statements of Income was as follows:

	Three Months Ended
	March 31,
(In thousands)	2015		2014
Contractual coupon interest	$	3,000	$	1,571
Amortization of debt issuance costs	543		222
Amortization of debt discount	1,747		671
Total	$	5,290	$	2,464