Note 16 - Stockholders' Equity (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Mar. 31, 2013 Series B Preferred Stock [Member]	Sep. 30, 2013 Series B Preferred Stock [Member]	Sep. 30, 2013 Approximation [Member]
Note 16 - Stockholders' Equity (Details) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,435,302,000		$ 1,435,302,000		$ 1,629,504,000
Increase (Decrease) in Retained Earnings			(194,200,000)
Percentage Change in Retained Earnings			11.90%
Stock Redeemed or Called During Period, Value						258,000,000	258,000,000
Available-for-sale Securities, Gross Unrealized Loss			21,600,000
Net Income (Loss) Attributable to Parent	$ 32,478,000	$ 30,358,000	$ 91,241,000	$ 89,132,000				$ 91,700,000