Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets:
Cash and due from banks	$ 95,364	$ 92,816
Cash at Federal Reserve and other banks	90,102	183,691
Cash and cash equivalents	185,466	276,507
Investment securities:
Marketable equity securities	3,007	2,960
Available for sale debt securities, net of allowance for credit losses of $—	1,001,999	950,138
Held to maturity debt securities, net of allowance for credit losses of $—	359,770	375,606
Restricted equity securities	17,250	17,250
Loans held for sale	2,695	5,265
Loans	4,379,062	4,307,366
Allowance for credit losses	(57,911)	(30,616)
Total loans, net	4,321,151	4,276,750
Premises and equipment, net	86,304	87,086
Cash value of life insurance	118,543	117,823
Accrued interest receivable	18,575	18,897
Goodwill	220,872	220,872
Other intangible assets, net	22,126	23,557
Operating leases, right-of-use	30,221	27,879
Other assets	86,330	70,591
Total assets	6,474,309	6,471,181
Deposits:
Noninterest-bearing demand	1,883,143	1,832,665
Interest-bearing	3,519,555	3,534,329
Total deposits	5,402,698	5,366,994
Accrued interest payable	1,986	2,407
Operating lease liability	30,007	27,540
Other liabilities	96,560	91,984
Other borrowings	19,309	18,454
Junior subordinated debt	57,323	57,232
Total liabilities	5,607,883	5,564,611
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at March 31, 2020 and December 31, 2019	0	0
Common stock, no par value: 50,000,000 shares authorized; 29,973,516 and 30,523,824 issued and outstanding at March 31, 2020 and December 31, 2019, respectively	534,623	543,998
Retained earnings	356,935	367,794
Accumulated other comprehensive income (loss), net of tax	(25,132)	(5,222)
Total shareholders’ equity	866,426	906,570
Total liabilities and shareholders’ equity	$ 6,474,309	$ 6,471,181