Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets:
Cash and due from banks	$ 105,968	$ 92,197
Cash at Federal Reserve and other banks	99,460	213,415
Cash and cash equivalents	205,428	305,612
Investment securities:
Available for sale	730,883	550,233
Held to maturity	514,844	602,536
Restricted equity securities	16,956	16,956
Loans held for sale	4,616	2,998
Loans	3,015,165	2,759,593
Allowance for loan losses	(30,323)	(32,503)
Total loans, net	2,984,842	2,727,090
Foreclosed assets, net	3,226	3,986
Premises and equipment, net	57,742	48,406
Cash value of life insurance	97,783	95,912
Accrued interest receivable	13,772	12,027
Goodwill	64,311	64,311
Other intangible assets, net	5,174	6,563
Mortgage servicing rights	6,687	6,595
Other assets	55,051	74,743
Total assets	4,761,315	4,517,968
Deposits:
Noninterest-bearing demand	1,368,218	1,275,745
Interest-bearing	2,640,913	2,619,815
Total deposits	4,009,131	3,895,560
Accrued interest payable	930	818
Reserve for unfunded commitments	3,164	2,719
Other liabilities	63,258	67,364
Other borrowings	122,166	17,493
Junior subordinated debt	56,858	56,667
Total liabilities	4,255,507	4,040,621
Commitments and contingencies (Note 18)
Shareholders' equity:
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 22,955,963 at December 31, 2017 22,867,802 at December 31, 2016	255,836	252,820
Retained earnings	255,200	232,440
Accumulated other comprehensive loss, net of tax	(5,228)	(7,913)
Total shareholders' equity	505,808	477,347
Total liabilities and shareholders' equity	$ 4,761,315	$ 4,517,968