City Holding Company (Parent Company Only) Financial Information (Condensed Statements Of Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Equity Securities, FV-NI, Unrealized Loss									$ (1,581)	$ 816	$ (801)
Interest expense	$ 4,543	$ 2,025	$ 1,452	$ 1,635	$ 1,842	$ 2,070	$ 2,585	$ 3,397	9,655	9,894	23,615
Income tax benefit	6,824	7,421	5,767	5,251	6,237	6,250	5,640	4,987	25,263	23,114	21,717
Net Income Available to Common Shareholders	$ 30,672	$ 27,374	$ 22,683	$ 21,342	$ 23,386	$ 22,732	$ 22,148	$ 19,814	102,071	88,080	89,595
Total Comprehensive (Loss) Income									(43,677)	71,107	114,988
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividend Income, Operating									90,500	96,000	74,300
Equity Securities, FV-NI, Unrealized Loss									(52)	820	(1,018)
Other income									99	191	183
Income									90,547	97,011	73,465
Interest expense									0	0	100
Other expenses									2,077	1,610	1,810
Expenses									2,077	1,610	1,910
Income Before Income Tax Benefit and Equity in Undistributed Net Income (Excess Dividends) of Subsidiaries									88,470	95,401	71,555
Income tax benefit									(604)	(264)	(760)
Income Before Equity in Undistributed Net Income (Excess Dividends) of Subsidiaries									89,074	95,665	72,315
Equity in undistributed net income (excess dividends) of subsidiaries									12,997	(7,585)	17,280
Net Income Available to Common Shareholders									102,071	88,080	89,595
Total Comprehensive (Loss) Income									$ (43,677)	$ 71,107	$ 114,988