Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 92,197	$ 94,305
Cash at Federal Reserve and other banks	213,415	209,156
Cash and cash equivalents	305,612	303,461
Investment securities:
Available for sale	550,233	404,885
Held to maturity	602,536	726,530
Restricted equity securities	16,956	16,956
Loans held for sale	2,998	1,873
Total loans, net of unamortized deferred loan fees and discounts	2,759,593	2,522,937
Allowance for loan losses	(32,503)	(36,011)
Total loans, net	2,727,090	2,486,926
Foreclosed assets, net	3,986	5,369
Premises and equipment, net	48,406	43,811
Cash value of life insurance	95,912	94,560
Accrued interest receivable	12,027	10,786
Goodwill	64,311	63,462
Other intangible assets, net	6,563	5,894
Mortgage servicing rights	6,595	7,618
Other assets	74,743	48,591
Total assets	4,517,968	4,220,722
Deposits:
Noninterest-bearing demand	1,275,745	1,155,695
Interest-bearing	2,619,815	2,475,571
Total deposits	3,895,560	3,631,266
Accrued interest payable	818	774
Reserve for unfunded commitments	2,719	2,475
Other liabilities	67,364	65,293
Other borrowings	17,493	12,328
Junior subordinated debt	56,667	56,470
Total liabilities	4,040,621	3,768,606
Commitments and contingencies (Note 18)
Shareholders' equity:
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 22,867,802 at December 31, 2016 22,775,173 at December 31, 2015	252,820	247,587
Retained earnings	232,440	206,307
Accumulated other comprehensive income (loss), net of tax	(7,913)	(1,778)
Total shareholders' equity	477,347	452,116
Total liabilities and shareholders' equity	$ 4,517,968	$ 4,220,722