Consolidated Balance Sheets [Parenthetical] (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Balance Sheet Parenthetical [Abstract]    
Investment Securities held-to-maturity, estimated fair value (in dollars) $ 155,555 $ 1,342
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 72,491,850 47,592,061
Common stock, shares outstanding 72,491,850 47,592,061