Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Securities available-for-sale, amortized cost (in Dollars)	$ 1,354,885	$ 1,637,965
Common stock par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized	100,000,000	100,000,000
Common stock shares issued	83,878,550	83,797,434
Common stock shares outstanding	79,670,985	79,589,869
Treasury stock shares	4,207,565	4,207,565