Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets:
Cash and due from banks	$ 355,459	$ 491,382
Investment securities available for sale	972,176	825,636
Investment securities held to maturity, with fair values of: $1,185,641 at March 31, 2013 and $1,184,557 at December 31, 2012	1,162,358	1,156,041
Purchased covered loans	353,034	372,283
Purchased non-covered loans	70,504	74,891
Originated loans	1,613,396	1,664,183
Allowance for loan losses	(30,354)	(30,234)
Total loans	2,006,580	2,081,123
Non-covered other real estate owned	9,671	12,661
Covered other real estate owned	13,713	13,691
Premises and equipment, net	38,519	38,639
Identifiable intangibles, net	22,042	23,261
Goodwill	121,673	121,673
Other assets	185,653	188,086
Total Assets	4,887,844	4,952,193
Liabilities:
Noninterest bearing deposits	1,621,887	1,676,071
Interest bearing deposits	2,540,063	2,556,421
Total deposits	4,161,950	4,232,492
Short-term borrowed funds	61,854	53,687
Federal Home Loan Bank advances	25,743	25,799
Term repurchase agreement	10,000	10,000
Debt financing	15,000	15,000
Other liabilities	54,317	55,113
Total Liabilities	4,328,864	4,392,091
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 27,018 at March 31, 2013 and 27,213 at December 31, 2012	373,579	372,012
Deferred compensation	3,101	3,101
Accumulated other comprehensive income	15,372	14,625
Retained earnings	166,928	170,364
Total Shareholders' Equity	558,980	560,102
Total Liabilities and Shareholders' Equity	$ 4,887,844	$ 4,952,193