Note 11 - Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2017

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, 2017 and December 31, 2016 was as follows:

(In thousands)		June 30, 2017		December 31, 2016
5.500%	Senior Notes due 2019	$	297,510	$	296,907
5.250%	Senior Notes due 2020	345,932		345,308
7.000%	Senior Notes due 2021	344,943		344,362
3.000%	Convertible Senior Notes due 2017	625		20,947
2.250%	Convertible Senior Notes due 2019	—		62,013
	Total long-term debt	$	989,010	$	1,069,537

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, 2017			December 31, 2016			June 30, 2017		December 31, 2016
Liability component:
Principal	$	642		$	22,233		$	—	$	68,024
Debt discount, net (1)	(16		)	(1,221		)	—		(5,461		)
Debt issuance costs (1)	(1		)	(65		)	—		(550		)
Net carrying amount	$	625		$	20,947		$	—	$	62,013
Equity component of currently redeemable convertible senior notes	$	16		$	—		$	—	$	—

______________________

(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)	2017		2016		2017		2016
Contractual interest expense (benefit) (1)	$	141	$	167	$	308	$	539
Amortization of debt issuance costs	14		17		32		54
Amortization of debt discount	267		314		605		1,022
Total interest expense (benefit) (1)	$	422	$	498	$	945	$	1,615

______________________

(1) Interest expense (benefit) represents expense incurred, net of adjustments to accruals previously recorded.

	Convertible Senior Notes due 2019
	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2017		2016		2017			2016
Contractual interest expense (benefit) (1)	$	—	$	537	$	(510	)	$	2,550
Amortization of debt issuance costs	—		80		16			373
Amortization of debt discount	—		788		163			3,697
Total interest expense (benefit) (1)	$	—	$	1,405	$	(331	)	$	6,620

______________________

(1) Interest expense (benefit) represents expense incurred, net of adjustments to accruals previously recorded.