Note 11 - Long-Term Debt Schedule of Liability and Equity Components of Convertible Debt (Details) (USD $) In Thousands, unless otherwise specified															12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Convertible Senior Notes Due 2017		Dec. 31, 2012 Convertible Senior Notes Due 2017		Dec. 31, 2013 Convertible Senior Notes Due 2017 Convertible Debt [Member]		Dec. 31, 2012 Convertible Senior Notes Due 2017 Convertible Debt [Member]		Dec. 31, 2013 Convertible Senior Notes Due 2019		Dec. 31, 2012 Convertible Senior Notes Due 2019		Dec. 31, 2013 Convertible Senior Notes Due 2019 Convertible Debt [Member]
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Issuance of convertible debt (See Note 11)															$ 0
Principal amount of convertible debt in liabilities							450,000		450,000						400,000
Less: debt discount, net (1)							(96,202)	[1]	(115,746)	[1]					(69,818)	[1]
Long-term debt	930,072	663,571	353,798	[2]	334,254	[2]	353,798		334,254		330,182	[3]	0	[3]	330,182
Equity component (net of tax impact) (2)							$ 65,679	[4]	$ 65,679	[4]					$ 77,026	[4],[5]

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

[2] The principal amount of these notes is $450 million.

[3] The principal amount of these notes is $400 million.

[4] 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).

[5] 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.