Note 11 - Long-Term Debt (Tables)

9 Months Ended

Sep. 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 September 30, 2016 and December 31, 2015 was as follows:

(In thousands)		September 30, 2016		December 31, 2015
9.000%	Senior Notes due 2017	$	—	$	192,261
3.000%	Convertible Senior Notes due 2017	20,600		46,115
2.250%	Convertible Senior Notes due 2019	61,374		341,214
5.500%	Senior Notes due 2019	296,611		295,751
5.250%	Senior Notes due 2020	345,003		344,113
7.000%	Senior Notes due 2021	344,078		—
	Total long-term debt	$	1,067,666	$	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)	September 30, 2016			December 31, 2015			September 30, 2016			December 31, 2015
Liability component:
Principal	$	22,233		$	52,370		$	68,024		$	389,992
Debt discount, net (1)	(1,551		)	(5,941		)	(6,041		)	(44,313		)
Debt issuance costs (1)	(82		)	(314		)	(609		)	(4,465		)
Net carrying amount	$	20,600		$	46,115		$	61,374		$	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 September 30,				Nine Months Ended September 30,
($ in thousands)	2016		2015		2016		2015
Contractual interest expense	$	166	$	456	$	705	$	6,953
Amortization of debt issuance costs	17		43		71		659
Amortization of debt discount	322		808		1,344		11,910
Total interest expense	$	505	$	1,307	$	2,120	$	19,522

	Convertible Senior Notes due 2019
	Three Months Ended September 30,				Nine Months Ended September 30,
($ in thousands)	2016		2015		2016		2015
Contractual interest expense	$	493	$	2,250	$	3,043	$	6,750
Amortization of debt issuance costs	74		317		447		975
Amortization of debt discount	737		3,146		4,434		9,342
Total interest expense	$	1,304	$	5,713	$	7,924	$	17,067