Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets:
Cash and due from banks	$ 73,652	$ 57,254
Cash at Federal Reserve and other banks	563,623	313,812
Cash and cash equivalents	637,275	371,066
Securities available-for-sale	229,223	277,271
Restricted equity securities	10,610	9,133
Loans held for sale	10,219	4,988
Loans	1,551,032	1,419,571
Allowance for loan losses	(45,914)	(42,571)
Total loans, net	1,505,118	1,377,000
Foreclosed assets, net	16,332	9,913
Premises and equipment, net	19,893	19,120
Cash value of life insurance	50,403	50,541
Accrued interest receivable	7,312	7,131
Goodwill	15,519	15,519
Other intangible assets, net	1,301	580
Mortgage servicing rights	4,603	4,605
Indemnification asset	4,405	5,640
Other assets	43,384	37,282
Total assets	2,555,597	2,189,789
Deposits:
Noninterest-bearing demand	541,276	424,070
Interest-bearing	1,649,260	1,428,103
Total deposits	2,190,536	1,852,173
Accrued interest payable	1,674	2,151
Reserve for unfunded commitments	2,740	2,640
Other liabilities	30,427	29,170
Other borrowings	72,541	62,020
Junior subordinated debt	41,238	41,238
Total liabilities	2,339,156	1,989,392
Commitments and contingencies (Note 18)
Shareholders' equity:
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 15,978,958 at December 31, 2011, 15,860,138 at December 31, 2010	84,079	81,554
Retained earnings	128,551	117,533
Accumulated other comprehensive income, net of tax	3,811	1,310
Total shareholders' equity	216,441	200,397
Total liabilities and shareholders' equity	$ 2,555,597	$ 2,189,789