Condensed Parent Company Information (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total assets	$ 35,081,785	$ 35,578,573
Long term debt	210,544	236,317
Other liabilities	473,774	523,089
Stockholders' equity	4,127,636	3,803,661	$ 3,342,628	$ 3,670,352
Total liabilities and stockholders' equity	35,081,785	35,578,573
Hancock Whitney Corporation [Member]
Cash	272,693	218,714
Investment in bank subsidiaries	3,994,927	3,712,718
Investment in non-bank subsidiaries	27,460	29,446
Due from subsidiaries and other assets	3,301	11,628
Total assets	4,298,381	3,972,506
Long term debt	167,120	166,968
Other liabilities	3,625	1,877
Stockholders' equity	4,127,636	3,803,661
Total liabilities and stockholders' equity	$ 4,298,381	$ 3,972,506