Note 10 - Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2015

Long-term Debt, Unclassified [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

The carrying value of our long-term debt at March 31, 2015 and December 31, 2014 was as follows:

(In thousands)		March 31, 2015		December 31, 2014
9.000%	Senior Notes due 2017	$	192,870	$	192,605
3.000%	Convertible Senior Notes due 2017 (1)	381,018		375,310
2.250%	Convertible Senior Notes due 2019 (2)	345,084		342,011
5.500%	Senior Notes due 2019	300,000		300,000
	Total long-term debt	$	1,218,972	$	1,209,926

_______________________

(1) The principal amount of these notes is $450 million.

(2) The principal amount of these notes is $400 million.

Schedule of Liability and Equity Components of Convertible Debt [Table Text Block]

The convertible notes are reflected on our condensed consolidated balance sheets as follows:

	Convertible Senior Notes due 2017						Convertible Senior Notes due 2019
(In thousands)	March 31, 2015			December 31, 2014			March 31, 2015			December 31, 2014
Liability component:
Principal	$	450,000		$	450,000		$	400,000		$	400,000
Less: Debt discount, net (1)	(68,982		)	(74,690		)	(54,916		)	(57,989		)
Net carrying amount	$	381,018		$	375,310		$	345,084		$	342,011
Equity component of currently redeemable convertible senior notes	$	68,982		$	74,690		$	—		$	—

__________________

(1) Included within long-term debt and is being amortized over the life of the convertible notes.

Schedule of Interest Expense Recognized Related to Convertible Debt [Table Text Block]

The following tables set forth total interest expense recognized related to the convertible notes for the periods indicated:

	Convertible Senior Notes due 2017
	Three Months Ended March 31,
($ in thousands)	2015			2014
Contractual interest expense	$	3,375		$	3,375
Amortization of debt issuance costs	318			300
Amortization of debt discount	5,708			5,186
Total interest expense	$	9,401		$	8,861
Effective interest rate of the liability component	9.75		%	9.75		%

	Convertible Senior Notes due 2019
	Three Months Ended March 31,
($ in thousands)	2015			2014
Contractual interest expense	$	2,250		$	2,250
Amortization of debt issuance costs	328			316
Amortization of debt discount	3,073			2,889
Total interest expense	$	5,651		$	5,455
Effective interest rate of the liability component	6.25		%	6.25		%