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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

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