Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 32,547	$ 17,207
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan and lease losses	4,761	17,462
Depreciation of premises and equipment	2,651	2,795
Net amortization of investment securities premiums and discounts	834	779
Net gain on sales of investment securities	(8)	(10)
Net gain on mortgage banking activities	(1,279)	(1,658)
Bank owned life insurance income	(1,695)	(1,879)
Net accretion of acquisition accounting fair value adjustments	(247)	(495)
Stock-based compensation	1,256	1,719
Intangible expenses	843	1,206
Other adjustments to reconcile net income to cash (used in) provided by operating activities	(461)	190
Originations of loans held for sale	(69,323)	(74,695)
Proceeds from the sale of loans held for sale	70,603	76,263
Contributions to pension and other postretirement benefit plans	(132)	(133)
Increase in accrued interest receivable and other assets	(3,921)	(3,089)
(Decrease) increase in accrued interest payable and other liabilities	(4,872)	814
Net cash provided by operating activities	31,557	36,476
Cash flows from investing activities:
Net capital expenditures	(1,432)	(1,347)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	11,054	4,253
Proceeds from maturities, calls and principal repayments of securities available-for-sale	27,784	34,824
Proceeds from sales of securities available-for-sale	15,494	1,010
Purchases of investment securities held-to-maturity	(41,808)	(45,349)
Purchases of investment securities available-for-sale	(498)	(1,485)
Proceeds from sales of money market mutual funds	523	10,706
Purchases of money market mutual funds	(1,203)	(6,284)
Net increase in other investments	(4,418)	(5,564)
Net increase in loans and leases	(162,169)	(211,534)
Proceeds from sales of other real estate owned	599	21
Purchases of bank owned life insurance	0	(776)
Proceeds from bank owned life insurance	0	1,374
Net cash used in investing activities	(156,074)	(220,151)
Cash flows from financing activities:
Net increase in deposits	236,213	65,963
Net (decrease) increase in short-term borrowings	(150,418)	126,422
Proceeds from issuance of long-term debt	25,000	0
Payment of contingent consideration on acquisitions	(65)	(67)
Purchases of treasury stock	(1,175)	(1,259)
Stock issued under dividend reinvestment and employee stock purchase plans	1,135	1,173
Proceeds from exercise of stock options	691	711
Cash dividends paid	(11,717)	(11,734)
Net cash provided by financing activities	99,664	181,209
Net decrease in cash and cash equivalents	(24,853)	(2,466)
Cash and cash equivalents at beginning of year	109,420	75,409
Cash and cash equivalents at end of period	84,567	72,943
Supplemental disclosures of cash flow information:
Cash paid for interest	22,002	13,190
Cash paid for income taxes, net of refunds	9,883	1,060
Transfer of loans to other real estate owned	$ 0	$ 402