Note 13 - Senior Notes Payable (Details) (USD $)	3 Months Ended					1 Months Ended
	Jun. 30, 2014	Jun. 30, 2014 1.25% Convertible Senior Notes Due August 2032 [Member]	Mar. 31, 2014 1.25% Convertible Senior Notes Due August 2032 [Member]	Jun. 30, 2013 1.25% Convertible Senior Notes Due August 2032 [Member]	Mar. 31, 2014 10.75% Senior Notes due September 2016 [Member]	Apr. 30, 2014 6.25% Senior Notes due April 2014 [Member]
Note 13 - Senior Notes Payable (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.25%	1.25%	1.25%	10.75%	6.25%
Maximum Carve-out In Credit Facility Indebtedness (in Dollars)	$ 1,100,000,000
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)		$ 8.08
Debt Instrument, Redemption Price, Percentage		100.00%
Debt Instrument, Repurchase Price, Percentage	100.00%
Maturities of Senior Debt (in Dollars)						$ 5,000,000