Note 10 - Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2014

Long-term Debt, Unclassified [Abstract]

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

The carrying value of our long-term debt at March 31, 2014 and December 31, 2013 was as follows:

(In thousands)		March 31, 2014		December 31, 2013
5.375%	Senior Notes due 2015	$	54,484	$	54,481
9.000%	Senior Notes due 2017	191,850		191,611
3.000%	Convertible Senior Notes due 2017 (1)	358,985		353,798
2.250%	Convertible Senior Notes due 2019 (2)	333,071		330,182
	Total long-term debt	$	938,390	$	930,072

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(1) The principal amount of these notes is $450 million.

(2) The principal amount of these notes is $400 million.

Schedule of Liability and Equity Components of Convertible Debt [Line Items]

Schedule of Liability and Equity Components of Convertible Debt [Table Text Block]

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)	March 31, 2014				December 31, 2013			March 31, 2014				December 31, 2013
Liability component:
Principal	$	450,000			$	450,000		$	400,000			$	400,000
Less: debt discount, net (1)	(91,016		)		(96,202		)	(66,929		)		(69,818		)
Net carrying amount	$	358,984			$	353,798		$	333,071			$	330,182
Equity component of currently redeemable convertible senior notes	$	91,016			$	—		$	—			$	—
Equity component (net of tax impact) (2)	$	(25,337	)	(3)	$	65,679		$	77,026		(4)	$	77,026		(4)

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

(2) Amount included within additional paid-in capital, net of the capped call transactions (Convertible Senior Notes due 2017) and related issuance costs (Convertible Senior Notes due 2017 and 2019).

(3) Primarily represents the deferred tax amount related to this transaction due to the reclassification of the debt discount to temporary equity.

(4) There was no net tax impact recorded in equity related to the Convertible Senior Notes due 2019, as a result of our full valuation allowance.

Schedule of Interest Expense Recognized Related to Convertible Debt [Table Text Block]

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 March 31,
($ in thousands)	2014			2013
Contractual interest expense	$	4,399		$	3,375
Amortization of debt issuance costs	300			283
Amortization of debt discount	5,186			4,712
Total interest expense	$	9,885		$	8,370
Effective interest rate of the liability component	9.75		%	9.75		%

	Convertible Senior Notes due 2019
	Three Months Ended March 31,
($ in thousands)	2014			2013
Contractual interest expense	$	2,250		$	675
Amortization of debt issuance costs	316			92
Amortization of debt discount	2,889			819
Total interest expense	$	5,455		$	1,586
Effective interest rate of the liability component	6.25		%	6.25		%