Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 2,923	$ 32,547
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	45,580	4,753
Depreciation of premises and equipment	2,448	2,651
Net amortization of investment securities premiums and discounts	977	834
Net gain on sales of investment securities	(760)	(8)
Net gain on mortgage banking activities	(6,259)	(1,279)
Bank owned life insurance income	(1,466)	(1,695)
Stock-based compensation	1,139	1,256
Intangible expenses	651	843
Other adjustments to reconcile net income to cash used in operating activities	(985)	(708)
Originations of loans held for sale	(186,426)	(69,323)
Proceeds from the sale of loans held for sale	178,995	70,603
Contributions to pension and other postretirement benefit plans	(136)	(132)
Increase in accrued interest receivable and other assets	(12,160)	(3,921)
Increase (decrease) in accrued interest payable and other liabilities	1,062	(4,864)
Net cash provided by operating activities	25,583	31,557
Cash flows from investing activities:
Net capital expenditures	(1,680)	(1,432)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	32,663	11,054
Proceeds from maturities, calls and principal repayments of securities available-for-sale	30,087	27,784
Proceeds from sales of securities available-for-sale	63,565	15,494
Purchases of investment securities held-to-maturity	(43,116)	(41,808)
Purchases of investment securities available-for-sale	(39,003)	(498)
Proceeds from sales of money market mutual funds	6,912	523
Purchases of money market mutual funds	(6,529)	(1,203)
Net increase (decrease) in other investments	62	(4,418)
Net increase in loans and leases	(591,521)	(162,169)
Proceeds from sales of other real estate owned	0	599
Net cash used in investing activities	(548,560)	(156,074)
Cash flows from financing activities:
Net increase in deposits	509,253	236,213
Net increase (decrease) in short-term borrowings	192,100	(150,418)
Proceeds from issuance of long-term debt	125,000	25,000
Repayment of long-term debt	(65,000)	0
Payment of contingent consideration on acquisitions	(61)	(65)
Purchases of treasury stock	(4,452)	(1,175)
Stock issued under dividend reinvestment and employee stock purchase plans	1,163	1,135
Proceeds from exercise of stock options	94	691
Cash dividends paid	(11,719)	(11,717)
Net cash provided by financing activities	746,378	99,664
Net increase (decrease) in cash and cash equivalents	223,401	(24,853)
Cash and cash equivalents at beginning of year	125,128	109,420
Cash and cash equivalents at end of period	348,529	84,567
Supplemental disclosures of cash flow information:
Cash paid for interest	17,535	22,002
Cash paid for income taxes, net of refunds	7,977	9,883
Transfer of loans to other real estate owned	8,125	0
Transfer of Portfolio Loans and Leases to Held-for-sale	$ 14,416	$ 0