Note 12 - Long-Term Debt Level 3 (Tables)

12 Months Ended

Dec. 31, 2016

Long-term Debt, Unclassified [Abstract]

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

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

		December 31,
($ in thousands)		2016		2015
9.000%	Senior Notes due 2017	$	—	$	192,261
5.500%	Senior Notes due 2019	296,907		295,751
5.250%	Senior Notes due 2020	345,308		344,113
7.000%	Senior Notes due 2021	344,362		—
3.000%	Convertible Senior Notes due 2017	20,947		46,115
2.250%	Convertible Senior Notes due 2019	62,013		341,214
	Total long-term debt	$	1,069,537	$	1,219,454

Convertible Debt [Table Text Block]

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

	Convertible Senior Notes due 2017						Convertible Senior Notes due 2019
	December 31,						December 31,
(In thousands)	2016			2015			2016			2015
Liability component:
Principal	$	22,233		$	52,370		$	68,024		$	389,992
Debt discount, net (1)	(1,221		)	(5,941		)	(5,461		)	(44,313		)
Debt issuance costs (1)	(65		)	(314		)	(550		)	(4,465		)
Net carrying amount	$	20,947		$	46,115		$	62,013		$	341,214

______________________

(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 table sets forth total interest expense recognized related to the convertible notes for the periods indicated:

	Convertible Senior Notes due 2017				Convertible Senior Notes due 2019
	December 31,				December 31,
	2016		2015		2016		2015
(In thousands)
Contractual interest expense	$	872	$	7,359	$	3,426	$	8,925
Amortization of debt discount	1,674		12,621		5,016		12,487
Amortization of debt issuance costs	88		696		505		1,292
Total interest expense	$	2,634	$	20,676	$	8,947	$	22,704