Basis of Presentation	6 Months Ended
Jun. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation The consolidated financial statements include the accounts of Hancock Whitney Corporation and all other entities in which it has a controlling interest (the “Company”). The financial statements include all adjustments that are, in the opinion of management, necessary to fairly state the Company’s financial condition, results of operations, changes in stockholders’ equity and cash flows for the interim periods presented. The Company has also evaluated all subsequent events for potential recognition and disclosure through the date of the filing of this Quarterly Report on Form 10-Q. Some financial information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) have been condensed or omitted in this Quarterly Report on Form 10-Q pursuant to Securities and Exchange Commission rules and regulations. These financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Financial information reported in these financial statements is not necessarily indicative of the Company’s financial condition, results of operations, or cash flows for any other interim or annual period. Certain prior period amounts have been reclassified to conform to the current period presentation. These changes in presentation did not have a material impact on the Company’s financial condition or operating results. Use of Estimates The accounting principles the Company follows and the methods for applying these principles conform to GAAP and general practices followed by the banking industry. These accounting principles require management to make estimates and assumptions about future events that affect the amounts reported in the consolidated financial statements and the accompanying notes. Actual results could differ from those estimates. Accounting Policies There were no material changes or developments during the reporting period with respect to methodologies that the Company uses when applying what management believes are critical accounting policies and developing critical accounting estimates as disclosed in its Annual Report on Form 10-K for the year ended December 31, 2020. Beginning in the second quarter of 2021, the Company enters into mandatory delivery forward sales contracts concurrently with interest rate lock commitments for select residential mortgage banking product offerings that are expected to be sold when funded. Previously, the Company only entered into forward sales agreements on a best-efforts basis and will now utilize both types of delivery methods. With mandatory delivery contracts, the Company commits to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. Forward loan sale commitments for the mandatory delivery contracts include the use of To Be Announced (“TBA”) securities to mitigate the risk of changes in value of the rate lock commitment. With the change in delivery method, the Company has elected the fair value option on funded residential mortgage loans originated for sale that are associated with forward sales contracts. For mortgage loans for which the Company has elected the fair value option, gains and losses are included in noninterest income within secondary mortgage market operations. For further discussion, see Note 6 – Derivatives and Note 14 – Fair Value Measurements. Refer to Note 15 – Recent Accounting Pronouncements for a discussion of accounting standards adopted during the six months ended June 30, 2021 and the impact to the Company’s financial statements.

Basis of Presentation

6 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

1. Basis of Presentation

The consolidated financial statements include the accounts of Hancock Whitney Corporation and all other entities in which it has a controlling interest (the “Company”). The financial statements include all adjustments that are, in the opinion of management, necessary to fairly state the Company’s financial condition, results of operations, changes in stockholders’ equity and cash flows for the interim periods presented. The Company has also evaluated all subsequent events for potential recognition and disclosure through the date of the filing of this Quarterly Report on Form 10-Q. Some financial information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) have been condensed or omitted in this Quarterly Report on Form 10-Q pursuant to Securities and Exchange Commission rules and regulations. These financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Financial information reported in these financial statements is not necessarily indicative of the Company’s financial condition, results of operations, or cash flows for any other interim or annual period.

Certain prior period amounts have been reclassified to conform to the current period presentation. These changes in presentation did not have a material impact on the Company’s financial condition or operating results.

Use of Estimates

The accounting principles the Company follows and the methods for applying these principles conform to GAAP and general practices followed by the banking industry. These accounting principles require management to make estimates and assumptions about future events that affect the amounts reported in the consolidated financial statements and the accompanying notes. Actual results could differ from those estimates.

Accounting Policies

There were no material changes or developments during the reporting period with respect to methodologies that the Company uses when applying what management believes are critical accounting policies and developing critical accounting estimates as disclosed in its Annual Report on Form 10-K for the year ended December 31, 2020.

Beginning in the second quarter of 2021, the Company enters into mandatory delivery forward sales contracts concurrently with interest rate lock commitments for select residential mortgage banking product offerings that are expected to be sold when funded. Previously, the Company only entered into forward sales agreements on a best-efforts basis and will now utilize both types of delivery methods. With mandatory delivery contracts, the Company commits to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. Forward loan sale commitments for the mandatory delivery contracts include the use of To Be Announced (“TBA”) securities to mitigate the risk of changes in value of the rate lock commitment. With the change in delivery method, the Company has elected the fair value option on funded residential mortgage loans originated for sale that are associated with forward sales contracts. For mortgage loans for which the Company has elected the fair value option, gains and losses are included in noninterest income within secondary mortgage market operations. For further discussion, see Note 6 – Derivatives and Note 14 – Fair Value Measurements.

Refer to Note 15 – Recent Accounting Pronouncements for a discussion of accounting standards adopted during the six months ended June 30, 2021 and the impact to the Company’s financial statements.