CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows From Operating Activities:
Net income	$ 28,604	$ 25,176	$ 30,404
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	859	859	563
Net amortization of premium/discount on investment securities	7,328	5,939	6,149
Depreciation	4,313	4,471	4,227
Gains on sales of securities	(51)	(1,075)	(19)
Stock-based compensation expense	2,859	2,267	3,144
(Release of) provision for credit losses	(130)	810	250
Deferred income tax (benefit) expense	(698)	(874)	1,247
Increase (decrease) in current income tax liability	206	1,237	(1,838)
(Decrease) increase in pension liability	(1,811)	4,423	(1,916)
(Increase) decrease in accounts receivable	(602)	756	988
Other operating activities, net	(6,330)	3,792	(1,073)
Net cash provided by operating activities	34,547	47,781	42,126
Cash Flows From Investing Activities:
Proceeds from sales of securities available-for-sale	63,774	21,943	4,648
Proceeds from maturities of securities available-for-sale	96,951	63,789	21,502
Purchases of securities available-for-sale	(494,226)	(20,043)	0
Net increase in loans	(68,664)	(119,183)	(50,970)
Purchase of bank-owned life insurance	(25,119)	0	0
(Increase) decrease in payments in advance of funding	(96,864)	11,595	(45,381)
Purchases of premises and equipment, net	(4,369)	(2,001)	(2,723)
Asset acquisition of Gateway Giving, LLC	0	0	(2,833)
Net cash used in investing activities	(528,517)	(43,900)	(75,757)
Cash Flows From Financing Activities:
Net increase in noninterest-bearing demand deposits	89,138	142,413	37,833
Net increase (decrease) in interest-bearing demand and savings deposits	90,310	166,289	(1,133)
Net decrease in time deposits	(8,801)	(14,982)	(1,490)
Net increase (decrease) in accounts and drafts payable	215,016	210,495	(22,400)
Net (decrease) increase in short-term borrowings	0	(18,000)	18,000
Cash dividends paid	(15,446)	(15,599)	(15,234)
Purchase of common shares for treasury	(30,997)	(6,825)	(7,799)
Other financing activities, net	(850)	(1,098)	(1,125)
Net cash provided by financing activities	338,370	462,693	6,652
Net (decrease) increase in cash and cash equivalents	(155,600)	466,574	(26,979)
Cash and cash equivalents at beginning of year	670,528	203,954	230,933
Cash and cash equivalents at end of year	514,928	670,528	203,954
Supplemental information:
Cash paid for interest	1,194	2,426	5,181
Cash paid for income taxes	$ 5,637	$ 4,732	$ 7,604