CONDENSED CONSOLIDATED STATEMENTS OF CONDITION (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 45,922	$ 59,540
Federal funds sold	476	466
Interest-bearing deposits with banks	38,188	26,400
Cash and cash equivalents	84,586	86,406
Residential mortgage loans held for sale (at fair value)	48,383	36,149
Investments available-for-sale (at fair value)	766,080	825,582
Investments held-to-maturity -- fair value of $216,024 and $222,024 at March 31, 2013 and December 31, 2012, respectively	211,376	215,814
Other equity securities	31,237	33,636
Total loans and leases	2,565,069	2,531,128
Less: allowance for loan and lease losses	(41,246)	(42,957)
Net loans and leases	2,523,823	2,488,171
Premises and equipment, net	47,701	48,326
Other real estate owned	5,250	5,926
Accrued interest receivable	12,926	12,392
Goodwill	84,808	84,808
Other intangible assets, net	2,702	3,163
Other assets	113,154	114,833
Total assets	3,932,026	3,955,206
Liabilities
Noninterest-bearing deposits	832,679	847,415
Interest-bearing deposits	2,086,529	2,065,619
Total deposits	2,919,208	2,913,034
Securities sold under retail repurchase agreements and federal funds purchased	50,302	86,929
Advances from FHLB	405,000	405,058
Subordinated debentures	35,000	35,000
Accrued interest payable and other liabilities	33,569	31,673
Total liabilities	3,443,079	3,471,694
Stockholders' Equity
Common stock -- par value $1.00; shares authorized 50,000,000; shares issued and outstanding 24,954,892 and 24,905,392 at March 31, 2013 and December 31, 2012, respectively	24,955	24,905
Additional paid in capital	191,615	191,689
Retained earnings	262,645	255,606
Accumulated other comprehensive income	9,732	11,312
Total stockholders' equity	488,947	483,512
Total liabilities and stockholders' equity	$ 3,932,026	$ 3,955,206