Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Securities available-for-sale, amortized cost	$ 954,415	$ 743,928
Unearned income on loans	(23,764)	(3,490)
Allowance for losses on covered loans	(8,327)	(6,055)
Other real estate owned covered by FDIC loss share	$ 24,835	$ 14,443
Common stock, par value
Common stock, shares authorized	63,033	63,033
Common stock, shares issued and outstanding	39,502	39,338