Note 13 - Long-Term Debt Schedule of Liability and Equity Components of Convertible Debt (Details) (USD $)	81 Months Ended		0 Months Ended	12 Months Ended								81 Months Ended	12 Months Ended				0 Months Ended
	Aug. 16, 2017 Convertible Debt [Member]	Nov. 15, 2010 Convertible Debt [Member]	Jan. 04, 2013 9.00% Senior Notes due 2017 [Member]	Dec. 14, 2012 9.00% Senior Notes due 2017 [Member]	Dec. 31, 2012 9.00% Senior Notes due 2017 [Member]	Dec. 03, 2012 9.00% Senior Notes due 2017 [Member]	Dec. 31, 2012 3.00% Convertible Senior Notes due 2017 [Member]		Dec. 31, 2011 3.00% Convertible Senior Notes due 2017 [Member]		Nov. 15, 2010 3.00% Convertible Senior Notes due 2017 [Member]	Aug. 16, 2017 3.00% Convertible Senior Notes due 2017 [Member] Convertible Debt [Member]	Dec. 15, 2012 Five Point Three Seven Five Percent Senior Notes due 2015 [Member]	Dec. 31, 2012 Five Point Three Seven Five Percent Senior Notes due 2015 [Member]	Dec. 03, 2012 Five Point Three Seven Five Percent Senior Notes due 2015 [Member]	Jun. 01, 2005 Five Point Three Seven Five Percent Senior Notes due 2015 [Member]	Jan. 04, 2013 Debt Due 2015 Exchange [Member] 9.00% Senior Notes due 2017 [Member]	Jan. 04, 2013 Debt Due 2015 Exchange [Member] Five Point Three Seven Five Percent Senior Notes due 2015 [Member]	Dec. 31, 2012 Debt Due 2015 Exchange [Member] Five Point Three Seven Five Percent Senior Notes due 2015 [Member]
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Principal amount of convertible debt in liabilities							$ 450,000,000		$ 450,000,000		$ 450,000,000					$ 250,000,000
Less: debt discount, net (1)							(115,746,000)	[1]	(133,502,000)	[1]
Net carrying amount of convertible debt in liabilities							334,254,000		316,498,000
Equity component (net of tax impact) (2)							65,679,000	[2]	65,679,000	[2]
Debt Instrument, Convertible, Conversion Ratio	85.5688
Debt Instrument, Convertible, Conversion Price	$ 11.69
Maximum Stock Price Per Share Included In Capped Call Transaction	$ 14.11
Cash Paid To Purchase Capped Call Transactions		46,100,000
Convertible Debt Trigger Based on Common Stock Price												130.00%
Debt Conversion, Converted Instrument, Amount												1,000
Convertible Debt Trigger Based on Trading Price Per Share of Debt												98.00%
Debt Instrument, Offering Date					Dec. 03, 2012
Debt Instrument, Interest Rate, Stated Percentage						9.00%					3.00%					5.375%
Debt Instrument, Maturity Date					Jun. 15, 2017									Jun. 15, 2015
Principal Amount of Notes Used in Calculation of Debt Exchange															1,000
Debt Issuance Cost Per Principal Amount of Notes															25.00
Debt Instrument, Exchange, Early Participation Cutoff Date				Dec. 14, 2012
Debt Instrument, Exchange Offer, Last Payment Date													Dec. 15, 2012
Debt Instrument, Issuance Date					Dec. 31, 2012
Debt Conversion, Converted Instrument, Expiration or Due Date			Jan. 04, 2013														Jan. 04, 2013
Extinguishment of Debt, Amount																		195,176,000
Interest Payable, Current																			600,000
Payments of Debt Issuance Costs																	$ 4,900,000	$ 4,900,000

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

[2] Included within additional paid-in capital, net of capped call transactions and related issuance costs.