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Stockholders' Equity (Compliance with Regulatory Capital Requirements) (Details) $ in Thousands | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2018
--- | --- | --- | ---
Tier 1 leverage capital, Actual, Amount | $ 3,279,419 | $ 2,890,770 |
Common equity tier 1 (to risk weighted assets), Actual, Amount | 3,279,419 | 2,890,770 |
Tier 1 capital (to risk weighted assets), Actual, Amount | 3,279,419 | 2,890,770 |
Total capital (to risk weighted assets), Actual, Amount | $ 3,726,834 | $ 3,345,387 |
Tier 1 leverage capital, Actual, Ratio % | 0.0953 | 0.0825 |
Common equity tier 1 (to risk weighted assets), Actual, Ratio % | 11.41% | 11.09% |
Tier 1 capital (to risk weighted assets), Actual, Ratio % | 0.1141 | 0.1109 |
Total capital (to risk weighted assets), Actual, Ratio % | 0.1297 | 0.1284 |
Tier 1 leverage capital, Required for Minimum Capital Adequacy, Amount | $ 1,376,092 | $ 1,402,223 |
Common equity tier 1 (to risk weighted assets), Required for Minimum Capital Adequacy, Amount | 1,293,035 | 1,172,563 |
Tier 1 capital (to risk weighted assets), Required for Minimum Capital Adequacy, Amount | 1,724,046 | 1,563,417 |
Total capital (to risk weighted assets), Required for Minimum Capital Adequacy, Amount | $ 2,298,728 | $ 2,084,557 |
Tier 1 leverage capital, Required for Minimum Capital Adequacy, Ratio % | 0.0400 | 0.0400 | 0.040
Common equity tier 1 (to risk weighted assets), Required for Minimum Capital Adequacy, Ratio % | 4.50% | 4.50% | 4.50%
Tier 1 capital (to risk weighted assets), Required for Minimum Capital Adequacy, Ratio % | 0.0600 | 0.0600 | 0.060
Total capital (to risk weighted assets), Required for Minimum Capital Adequacy, Ratio % | 0.0800 | 0.0800 | 0.080
Tier 1 leverage capital, Required To Be Well Capitalized, Amount | $ 1,720,115 | $ 1,752,779 |
Common equity tier 1 (to risk weighted assets), Required To Be Well Capitalized, Amount | 1,867,717 | 1,693,702 |
Tier 1 capital (to risk weighted assets), Required To Be Well Capitalized, Amount | 2,298,728 | 2,084,557 |
Total capital (to risk weighted assets), Required To Be Well Capitalized, Amount | $ 2,873,411 | $ 2,605,696 |
Tier 1 leverage capital, Required To Be Well Capitalized, Ratio % | 0.0500 | 0.0500 | 0.050
Common equity tier 1 (to risk weighted assets), Required To Be Well Capitalized, Ratio % | 6.50% | 6.50% | 6.50%
Tier 1 capital (to risk weighted assets), Required To Be Well Capitalized, Ratio % | 0.0800 | 0.0800 | 0.080
Total capital (to risk weighted assets), Required To Be Well Capitalized, Ratio % | 0.1000 | 0.1000 | 0.100
Hancock Whitney Bank [Member] |  |  |
Tier 1 leverage capital, Actual, Amount | $ 3,279,536 | $ 2,926,874 |
Common equity tier 1 (to risk weighted assets), Actual, Amount | 3,279,536 | 2,926,874 |
Tier 1 capital (to risk weighted assets), Actual, Amount | 3,279,536 | 2,926,874 |
Total capital (to risk weighted assets), Actual, Amount | $ 3,554,451 | $ 3,208,991 |
Tier 1 leverage capital, Actual, Ratio % | 0.0954 | 0.0836 |
Common equity tier 1 (to risk weighted assets), Actual, Ratio % | 11.43% | 11.24% |
Tier 1 capital (to risk weighted assets), Actual, Ratio % | 0.1143 | 0.1124 |
Total capital (to risk weighted assets), Actual, Ratio % | 0.1239 | 0.1233 |
Tier 1 leverage capital, Required for Minimum Capital Adequacy, Amount | $ 1,374,761 | $ 1,401,157 |
Common equity tier 1 (to risk weighted assets), Required for Minimum Capital Adequacy, Amount | 1,291,467 | 1,171,341 |
Tier 1 capital (to risk weighted assets), Required for Minimum Capital Adequacy, Amount | 1,721,956 | 1,561,788 |
Total capital (to risk weighted assets), Required for Minimum Capital Adequacy, Amount | $ 2,295,942 | $ 2,082,384 |
Tier 1 leverage capital, Required for Minimum Capital Adequacy, Ratio % | 0.0400 | 0.0400 |
Common equity tier 1 (to risk weighted assets), Required for Minimum Capital Adequacy, Ratio % | 4.50% | 4.50% |
Tier 1 capital (to risk weighted assets), Required for Minimum Capital Adequacy, Ratio % | 0.0600 | 0.0600 |
Total capital (to risk weighted assets), Required for Minimum Capital Adequacy, Ratio % | 0.0800 | 0.0800 |
Tier 1 leverage capital, Required To Be Well Capitalized, Amount | $ 1,718,451 | $ 1,751,447 |
Common equity tier 1 (to risk weighted assets), Required To Be Well Capitalized, Amount | 1,865,453 | 1,691,937 |
Tier 1 capital (to risk weighted assets), Required To Be Well Capitalized, Amount | 2,295,942 | 2,082,384 |
Total capital (to risk weighted assets), Required To Be Well Capitalized, Amount | $ 2,869,927 | $ 2,602,980 |
Tier 1 leverage capital, Required To Be Well Capitalized, Ratio % | 0.0500 | 0.0500 |
Common equity tier 1 (to risk weighted assets), Required To Be Well Capitalized, Ratio % | 6.50% | 6.50% |
Tier 1 capital (to risk weighted assets), Required To Be Well Capitalized, Ratio % | 0.0800 | 0.0800 |
Total capital (to risk weighted assets), Required To Be Well Capitalized, Ratio % | 0.1000 | 0.1000 |

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