Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 16,079	$ 12,850
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan and lease losses	2,685	2,053
Depreciation of premises and equipment	1,318	1,408
Net amortization of investment securities premiums and discounts	379	402
Net gain on sales of investment securities	(1)	(10)
Net gain on mortgage banking activities	(483)	(716)
Bank owned life insurance income	(952)	(669)
Net accretion of acquisition accounting fair value adjustments	(60)	(146)
Stock-based compensation	577	847
Intangible expenses	426	612
Other adjustments to reconcile net income to cash used in operating activities	(145)	(18)
Originations of loans held for sale	(30,422)	(35,151)
Proceeds from the sale of loans held for sale	31,745	37,003
Contributions to pension and other postretirement benefit plans	(66)	(67)
Increase in accrued interest receivable and other assets	(3,709)	(3,307)
(Decrease) increase in accrued interest payable and other liabilities	(316)	2,805
Net cash provided by operating activities	17,055	17,896
Cash flows from investing activities:
Net capital expenditures	(850)	(1,009)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	4,288	1,721
Proceeds from maturities, calls and principal repayments of securities available-for-sale	17,085	19,423
Proceeds from sales of securities available-for-sale	491	1,010
Purchases of investment securities held-to-maturity	(10,309)	(30,641)
Purchases of investment securities available-for-sale	0	(1,487)
Proceeds from sales of money market mutual funds	10	1,016
Purchases of money market mutual funds	(606)	(6,205)
Net increase in other investments	(4,362)	(5,597)
Net increase in loans and leases	(61,582)	(69,830)
Proceeds from sales of other real estate owned	599	0
Purchases of bank owned life insurance	0	(777)
Net cash used in investing activities	(55,236)	(92,376)
Cash flows from financing activities:
Net increase (decrease) in deposits	117,239	(57,575)
Net (decrease) increase in short-term borrowings	(116,583)	110,995
Payment of contingent consideration on acquisitions	(33)	(34)
Purchases of treasury stock	(950)	(655)
Stock issued under dividend reinvestment and employee stock purchase plans	571	569
Proceeds from exercise of stock options	521	268
Cash dividends paid	(5,863)	(5,866)
Net cash (used in) provided by financing activities	(5,098)	47,702
Net decrease in cash and cash equivalents	(43,279)	(26,778)
Cash and cash equivalents at beginning of year	109,420	75,409
Cash and cash equivalents at end of period	66,141	48,631
Supplemental disclosures of cash flow information:
Cash paid for interest	10,629	6,361
Cash paid for income taxes, net of refunds	$ 25	$ 145