City Holding Company (Parent Company Only) Financial Information (Condensed Statements Of Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Statements, Captions [Line Items]
Equity Securities, FV-NI, Unrealized Loss	$ (4,476)	$ (1,581)	$ 816
Interest Expense	52,023	9,655	9,894
Income tax benefit	28,741	25,263	23,114
Net Income Available to Common Shareholders	114,365	102,071	88,080
Total Comprehensive Income (Loss)	135,314	(43,677)	71,107
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividend Income, Operating	108,895	90,500	96,000
Equity Securities, FV-NI, Unrealized Loss	(302)	(52)	820
Other income	98	99	191
Income	108,691	90,547	97,011
Other expenses	2,024	2,077	1,610
Expenses	2,024	2,077	1,610
Income Before Income Tax Benefit and Equity in Undistributed Net Income (Excess Dividends) of Subsidiaries	106,667	88,470	95,401
Income tax benefit	(650)	(604)	(264)
Income Before Equity in Undistributed Net Income (Excess Dividends) of Subsidiaries	107,317	89,074	95,665
Equity in undistributed net income (excess dividends) of subsidiaries	7,048	12,997	(7,585)
Net Income Available to Common Shareholders	114,365	102,071	88,080
Total Comprehensive Income (Loss)	$ 135,316	$ (43,677)	$ 71,107