Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 50,588	$ 76,614
Interest earning deposits with banks	48,424	18,133
Total cash and cash equivalents	99,012	94,747
Securities available for sale, at fair value	726,056	759,916
Securities held to maturity (fair value of $172,877 and $179,885, respectively)	176,089	180,866
Total securities	902,145	940,782
Securities, restricted	36,195	35,349
Loans held for investment	3,201,897	3,102,752
Allowance for loan losses	(32,812)	(31,707)
Loans, net	3,169,085	3,071,045
Premises and equipment, net	33,892	33,505
Accrued interest receivable	11,907	11,652
Goodwill	105,950	105,950
Other intangible assets	5,003	5,214
Prepaid pension	10,039	9,936
Bank owned life insurance	88,039	87,493
Other real estate owned	175
Other assets	39,182	34,329
Total assets	4,500,624	4,430,002
Liabilities
Demand deposits	1,224,043	1,338,701
Savings, NOW and money market deposits	1,924,455	1,773,478
Certificates of deposit of $100,000 or more	159,303	158,584
Other time deposits	123,444	63,780
Total deposits	3,431,245	3,334,543
Federal funds purchased		50,000
Federal Home Loan Bank advances	520,092	501,374
Repurchase agreements	872	877
Subordinated debentures, net	78,676	78,641
Other liabilities and accrued expenses	36,416	35,367
Total liabilities	4,067,301	4,000,802
Commitments and contingencies
Stockholders' equity
Preferred stock, par value $.01 per share (2,000,000 shares authorized; none issued)
Common stock, par value $.01 per share (40,000,000 shares authorized; 19,792,615 and 19,719,575 shares issued, respectively; and 19,779,699 and 19,709,360 shares outstanding, respectively)	198	197
Surplus	348,420	347,691
Retained earnings	104,050	96,547
Treasury stock at cost, 12,916 and 10,215 shares, respectively	(436)	(296)
Total stockholders' equity before accumulated other comprehensive income (loss)	452,232	444,139
Accumulated other comprehensive loss, net of income taxes	(18,909)	(14,939)
Total stockholders' equity	433,323	429,200
Total liabilities and stockholders' equity	$ 4,500,624	$ 4,430,002