Note 11 - Long-Term Debt (Tables)

9 Months Ended

Sep. 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 September 30, 2017 and December 31, 2016 was as follows:

(In thousands)		September 30, 2017		December 31, 2016
5.500%	Senior Notes due 2019	$	157,470	$	296,907
5.250%	Senior Notes due 2020	231,618		345,308
7.000%	Senior Notes due 2021	194,974		344,362
4.500%	Senior Notes due 2024	442,223		—
3.000%	Convertible Senior Notes due 2017	521		20,947
2.250%	Convertible Senior Notes due 2019	—		62,013
	Total long-term debt	$	1,026,806	$	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)	September 30, 2017			December 31, 2016			September 30, 2017		December 31, 2016
Liability component:
Principal	$	526		$	22,233		$	—	$	68,024
Debt discount, net (1)	(5		)	(1,221		)	—		(5,461		)
Debt issuance costs (1)	—			(65		)	—		(550		)
Net carrying amount	$	521		$	20,947		$	—	$	62,013

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(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)	2017		2016		2017		2016
Contractual interest expense (benefit) (1)	$	4	$	166	$	312	$	705
Amortization of debt issuance costs	—		17		32		71
Amortization of debt discount	10		322		615		1,344
Total interest expense (benefit) (1)	$	14	$	505	$	959	$	2,120

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

	Convertible Senior Notes due 2019
	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2017		2016		2017			2016
Contractual interest expense (benefit) (1)	$	—	$	493	$	(510	)	$	3,043
Amortization of debt issuance costs	—		74		16			447
Amortization of debt discount	—		737		163			4,434
Total interest expense (benefit) (1)	$	—	$	1,304	$	(331	)	$	7,924

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