City Holding Company (Parent Company Only) Financial Information (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Investment securities available for sale, at fair value (amortized cost $1,479,545 and $1,673,864, net of allowance for credit losses of $0 at December 31, 2023 and December 31, 2022, respectively)	$ 1,338,137	$ 1,505,520
Net Loans	4,103,178	3,629,150
Fixed assets	72,146	70,786
Deferred tax assets, net	42,216	44,884
Other assets	124,153	149,263
Total Assets	6,168,052	5,878,106
Liabilities
Other liabilities	121,868	139,424
Total Liabilities	5,490,986	5,300,254
Total Shareholders’ Equity	677,066	577,852	$ 681,105
Total Liabilities and Shareholders’ Equity	6,168,052	5,878,106
Parent Company
Assets
Cash	63,988	54,597
Investment securities available for sale, at fair value (amortized cost $1,479,545 and $1,673,864, net of allowance for credit losses of $0 at December 31, 2023 and December 31, 2022, respectively)	1,781	2,530
Investment in subsidiaries	620,757	530,144
Net Loans	372	424
Fixed assets	0	2
Deferred tax assets, net	182	32
Other assets	1,193	1,321
Total Assets	688,273	589,050
Liabilities
Dividends payable	10,692	9,748
Other liabilities	515	1,450
Total Liabilities	11,207	11,198
Total Shareholders’ Equity	677,066	577,852
Total Liabilities and Shareholders’ Equity	$ 688,273	$ 589,050