CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 299,351	$ 289,309
Securities available for sale	527,231	481,275
Securities held to maturity (fair value of $65,133 in 2017 and $53,249 in 2016)	64,227	52,864
Mortgage loans held for sale, at fair value	5,761	11,662
Consumer loans held for sale, at fair value	2,677	2,198
Consumer loans held for sale, at the lower of cost or fair value	8,551	1,310
Loans	4,014,034	3,810,778
Allowance for loan and lease losses	(42,769)	(32,920)
Loans, net	3,971,265	3,777,858
Federal Home Loan Bank stock, at cost	32,067	28,208
Premises and equipment, net	42,588	40,462
Premises, held for sale	3,017	2,407
Goodwill	16,300	16,300
Other real estate owned	115	1,391
Bank owned life insurance	63,356	61,794
Other assets and accrued interest receivable	48,856	49,271
TOTAL ASSETS	5,085,362	4,816,309
Deposits:
Noninterest-bearing	1,022,042	971,952
Interest-bearing	2,411,116	2,188,740
Total deposits	3,433,158	3,160,692
Securities sold under agreements to repurchase and other short-term borrowings	204,021	173,473
Federal Home Loan Bank advances	737,500	802,500
Subordinated note	41,240	41,240
Other liabilities and accrued interest payable	37,019	33,998
Total liabilities	4,452,938	4,211,903
Commitments and contingent liabilities (Footnote 13)
STOCKHOLDERS' EQUITY
Preferred stock, no par value
Class A Common Stock and Class B Common Stock, no par value	4,902	4,906
Additional paid in capital	139,406	138,192
Retained earnings	487,700	460,621
Accumulated other comprehensive income	416	687
Total stockholders' equity	632,424	604,406
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 5,085,362	$ 4,816,309