Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Allowance for covered loans	$ 9,771	$ 18,275
Common stock, par value (in usd per share)	$ 0	$ 0
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	111,973,203	111,889,959
Common stock, shares, outstanding	111,973,203	111,889,959