Note 11 - Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2016

Long-term Debt, Unclassified [Abstract]

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

The carrying value of our long-term debt at June 30, 2016 and December 31, 2015 was as follows:

(In thousands)		June 30, 2016		December 31, 2015
9.000%	Senior Notes due 2017	$	193,318	$	192,261
3.000%	Convertible Senior Notes due 2017	20,261		46,115
2.250%	Convertible Senior Notes due 2019	79,649		341,214
5.500%	Senior Notes due 2019	296,320		295,751
5.250%	Senior Notes due 2020	344,702		344,113
7.000%	Senior Notes due 2021	343,801		—
	Total long-term debt	$	1,278,051	$	1,219,454

Convertible Debt

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)	June 30, 2016			December 31, 2015			June 30, 2016			December 31, 2015
Liability component:
Principal	$	22,233		$	52,370		$	89,194		$	389,992
Debt discount, net (1)	(1,873		)	(5,941		)	(8,671		)	(44,313		)
Debt issuance costs (1)	(99		)	(314		)	(874		)	(4,465		)
Net carrying amount	$	20,261		$	46,115		$	79,649		$	341,214

______________________

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

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 June 30,				Six Months Ended June 30,
($ in thousands)	2016		2015		2016		2015
Contractual interest expense	$	167	$	3,122	$	539	$	6,497
Amortization of debt issuance costs	17		298		54		616
Amortization of debt discount	314		5,394		1,022		11,102
Total interest expense	$	498	$	8,814	$	1,615	$	18,215

	Convertible Senior Notes due 2019
	Three Months Ended June 30,				Six Months Ended June 30,
($ in thousands)	2016		2015		2016		2015
Contractual interest expense	$	537	$	2,250	$	2,550	$	4,500
Amortization of debt issuance costs	80		330		373		658
Amortization of debt discount	788		3,123		3,697		6,196
Total interest expense	$	1,405	$	5,703	$	6,620	$	11,354