Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ 22,634	$ 12,529
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan and lease losses	5,211	1,156
Depreciation of premises and equipment	2,730	1,912
Net amortization of investment securities premiums and discounts	959	582
Net gain on sales of investment securities	(36)	(457)
Net gain on mortgage banking activities	(2,650)	(2,929)
Bank owned life insurance income	(2,405)	(1,005)
Net accretion of acquisition accounting fair value adjustments	(1,508)	(303)
Stock-based compensation	1,708	944
Intangible expenses	1,205	1,757
Other adjustments to reconcile net income to cash provided by operating activities	(293)	218
Deferred tax (benefit) expense	(39)	1,619
Originations of loans held for sale	(64,035)	(104,668)
Proceeds from the sale of loans held for sale	69,847	106,685
Contributions to pension and other postretirement benefit plans	(138)	(121)
Decrease (increase) in accrued interest receivable and other assets	1,340	(4,249)
(Decrease) increase in accrued interest payable and other liabilities	(1,926)	1,784
Net cash provided by operating activities	32,604	15,454
Cash flows from investing activities:
Funds advanced for merger settlement	0	(98,885)
Net capital expenditures	(4,622)	(4,195)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	10,595	8,000
Proceeds from maturities, calls and principal repayments of securities available-for-sale	41,623	54,156
Proceeds from sales of securities available-for-sale	3,032	73,991
Purchases of investment securities held-to-maturity	(29,498)	0
Purchases of investment securities available-for-sale	(25,244)	(48,647)
Net increase in other investments	(6,637)	(7,283)
Net increase in loans and leases	(225,682)	(169,417)
Net (increase) decrease in interest-earning deposits	(3,168)	20,157
Proceeds from sales of other real estate owned	3,612	0
Net decrease in federal funds sold	0	(48,500)
Proceeds from bank owned life insurance	2,916	0
Net cash used in investing activities	(233,073)	(220,623)
Cash flows from financing activities:
Net increase (decrease) in deposits	90,796	(17,162)
Net increase in short-term borrowings	35,555	235,752
Proceeds from issuance of long-term debt	95,000	0
Repayment of long-term debt	(5,000)	0
Payment of contingent consideration on acquisitions	(5,317)	(1,160)
Purchases of treasury stock	(2,422)	(2,051)
Stock issued under dividend reinvestment and employee stock purchase plans	1,229	1,231
Proceeds from exercise of stock options	1,328	414
Cash dividends paid	(10,636)	(7,807)
Net cash provided by financing activities	200,533	209,217
Net increase in cash and due from banks	64	4,048
Cash and due from banks at beginning of year	48,757	32,356
Cash and due from banks at end of period	48,821	36,404
Supplemental disclosures of cash flow information:
Cash paid for interest	9,685	5,033
Cash paid for income taxes, net of refunds	5,942	4,348
Non cash transactions:
Transfer of loans to other real estate owned	$ 653	$ 1,952