Note 13 - Senior Notes Payable (Details)	6 Months Ended
	Jun. 30, 2015 USD ($) $ / shares	Jun. 30, 2014
Note 13 - Senior Notes Payable (Details) [Line Items]
Maximum Carve-out In Credit Facility Indebtedness (in Dollars)	$ 1,100,000,000
Debt Instrument, Repurchase Price, Percentage	100.00%
1¼% Convertible Senior Notes Due August 2032 [Member]
Note 13 - Senior Notes Payable (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.25%	1.25%
Debt Instrument, Convertible, Conversion Ratio	123.7662
Debt Instrument, Convertible, Principal Amount Used In Conversion Rate Calculation (in Dollars)	$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) | $ / shares	$ 8.08
Debt Instrument, Redemption Price, Percentage	100.00%
10¾% Senior Notes [Member]
Note 13 - Senior Notes Payable (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	10.75%