City Holding Company (Parent Company Only) Financial Information (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Assets
Investment securities available for sale, at fair value (amortized cost $1,570,449 and $1,479,545, net of allowance for credit losses of $0 at December 31, 2024 and December 31, 2023, respectively)	$ 1,421,306	$ 1,338,137
Net loans	4,252,854	4,103,178
Deferred tax assets, net	41,704	42,216
Other assets	116,283	124,153
Total Assets	6,459,459	6,168,052
Liabilities
Other liabilities	108,990	121,868
Total Liabilities	5,728,795	5,490,986
Total Shareholders’ Equity	730,664	677,066	$ 577,852
Total Liabilities and Shareholders’ Equity	6,459,459	6,168,052
Parent Company
Assets
Cash	117,331	63,988
Investment securities available for sale, at fair value (amortized cost $1,570,449 and $1,479,545, net of allowance for credit losses of $0 at December 31, 2024 and December 31, 2023, respectively)	382	1,781
Investment in subsidiaries	624,363	620,757
Net loans	305	372
Deferred tax assets, net	279	182
Other assets	534	1,193
Total Assets	743,194	688,273
Liabilities
Dividends payable	11,853	10,692
Other liabilities	677	515
Total Liabilities	12,530	11,207
Total Shareholders’ Equity	730,664	677,066
Total Liabilities and Shareholders’ Equity	$ 743,194	$ 688,273