Condensed Consolidated Balance Sheets [Parenthetical] (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Balance Sheet Parenthetical [Abstract]
Investment Securities held-to-maturity, estimated fair value (in dollars)	$ 155,435	$ 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	72,223,519	47,592,061
Common Stock, Shares, Outstanding	72,223,519	47,592,061