Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 88,157	$ 94,305
Cash at Federal Reserve and other banks	128,629	209,156
Cash and cash equivalents	216,786	303,461
Investment securities:
Available for sale	529,017	404,885
Held to maturity	674,412	726,530
Restricted equity securities	16,956	16,956
Loans held for sale	2,904	1,873
Loans	2,653,630	2,522,937
Allowance for loan losses	(35,509)	(36,011)
Total loans, net	2,618,121	2,486,926
Foreclosed assets, net	3,842	5,369
Premises and equipment, net	51,728	43,811
Cash value of life insurance	94,572	94,560
Accrued interest receivable	11,602	10,786
Goodwill	64,311	63,462
Other intangible assets, net	7,282	5,894
Mortgage servicing rights	6,720	7,618
Other assets	54,239	48,591
Total assets	4,352,492	4,220,722
Deposits:
Noninterest-bearing demand	1,181,702	1,155,695
Interest-bearing	2,559,694	2,475,571
Total deposits	3,741,396	3,631,266
Accrued interest payable	727	774
Reserve for unfunded commitments	2,883	2,475
Other liabilities	57,587	65,293
Other borrowings	19,464	12,328
Junior subordinated debt	56,567	56,470
Total liabilities	3,878,624	3,768,606
Commitments and contingencies (Note 18)
Shareholders' equity:
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 22,822,325 at June 30, 2016 22,775,173 at December 31, 2015	249,860	247,587
Retained earnings	217,935	206,307
Accumulated other comprehensive income, net of tax	6,073	(1,778)
Total shareholders' equity	473,868	452,116
Total liabilities and shareholders' equity	$ 4,352,492	$ 4,220,722