City Holding Company (Parent Company Only) Financial Information (Condensed Statements Of Cash Flows) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activities
Net Income Available to Common Shareholders	$ 114,365,000	$ 102,071,000	$ 88,080,000
Adjustments to reconcile net income to net cash provided by operating activities:
Unrealized and Realized Investment Gains (Losses)	4,476,000	1,581,000	(816,000)
Deferred income tax expense (benefit)	(2,764,000)	1,469,000	2,185,000
Stock based compensation	3,213,000	3,276,000	3,121,000
Change in other assets	14,526,000	(20,643,000)	(8,737,000)
Change in other liabilities	(3,203,000)	20,068,000	11,731,000
Net Cash Provided by Operating Activities	137,580,000	115,817,000	102,273,000
Proceeds from sales	205,627,000	0	0
Proceeds from sales	536,000	449,000	4,813,000
Investing Activities
Payments for (Proceeds from) Loans and Leases	(223,785,000)	(102,991,000)	76,992,000
Net Cash Used in Investing Activities	14,680,000	(410,452,000)	(191,167,000)
Financing Activities
Dividends paid	(39,993,000)	(36,702,000)	(36,138,000)
Purchases of treasury stock	(60,134,000)	(26,449,000)	(58,678,000)
Net Cash (Used) Provided by Financing Activities	(195,984,000)	(139,996,000)	194,866,000
(Decrease) Increase in Cash and Cash Equivalents	(43,724,000)	(434,631,000)	105,972,000
Cash and cash equivalents at beginning of period	200,000,000	634,631,000	528,659,000
Cash and Cash Equivalents at End of Period	156,276,000	200,000,000	634,631,000
Acquisition of Citizens Commerce Bancshares, Inc.	14,016,000	0	0
Parent Company
Operating Activities
Net Income Available to Common Shareholders	114,365,000	102,071,000	88,080,000
Adjustments to reconcile net income to net cash provided by operating activities:
Unrealized and Realized Investment Gains (Losses)	302,000	52,000	(820,000)
Deferred income tax expense (benefit)	(150,000)	(136,000)	(194,000)
Depreciation, Amortization and Accretion, Net	0	0	0
Stock based compensation	3,213,000	3,277,000	3,121,000
Change in other assets	128,000	(465,000)	89,000
Change in other liabilities	(4,134,000)	(1,851,000)	(2,775,000)
Equity In Undistributed Earnings Of Subsidiaries	(7,048,000)	(12,997,000)	7,585,000
Net Cash Provided by Operating Activities	106,676,000	89,951,000	95,086,000
Proceeds from sales	0	61,000	3,443,000
Proceeds from sales	447,000	0	0
Investing Activities
Payments for (Proceeds from) Loans and Leases	52,000	55,000	145,000
Net Cash Used in Investing Activities	2,842,000	116,000	3,588,000
Financing Activities
Repayments of Subordinated Debt	0	0	0
Dividends paid	(39,993,000)	(36,702,000)	(36,138,000)
Purchases of treasury stock	(60,134,000)	(26,449,000)	(58,678,000)
Exercise of stock options	0	797,000	691,000
Net Cash (Used) Provided by Financing Activities	(100,127,000)	(62,354,000)	(94,125,000)
(Decrease) Increase in Cash and Cash Equivalents	9,391,000	27,713,000	4,549,000
Cash and cash equivalents at beginning of period	54,597,000	26,884,000	22,335,000
Cash and Cash Equivalents at End of Period	63,988,000	54,597,000	26,884,000
Acquisition of Citizens Commerce Bancshares, Inc.	$ 2,343,000	$ 0	$ 0