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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | 9 Months Ended
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Sep. 30, 2024
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ​ 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES ​ The Company Headquartered in Richmond, Virginia, Atlantic Union Bankshares Corporation (NYSE: AUB) is the holding company for Atlantic Union Bank, which provides banking and related financial products and services to consumers and businesses. Basis of Financial Information The accounting policies and practices of Atlantic Union Bankshares Corporation and subsidiaries conform to GAAP and follow general practices within the banking industry. The consolidated financial statements include the accounts of the Company, which is a financial holding company and a bank holding company that owns all of the outstanding common stock of its banking subsidiary, Atlantic Union Bank, which owns Union Insurance Group, LLC, Atlantic Union Financial Consultants, LLC, Atlantic Union Bank Investments, Inc., and Atlantic Union Equipment Finance, Inc. The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. The preparation of the unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the ACL, the fair value of financial instruments, and the fair values associated with assets acquired and liabilities assumed in a business combination. The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the full year or any other period. On April 1, 2024, the Company completed its acquisition of American National. American National’s results of operations are included in the Company’s consolidated results since the date of acquisition. The unaudited consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s 2023 Form 10-K. Certain prior period amounts have been reclassified to conform to current period presentation. None of these reclassifications had a material effect on the Company’s financial statements. See Note 1 “Summary of Significant Accounting Policies” in the “Notes to the Consolidated Financial Statements” contained in Item 8 “Financial Statements and Supplementary Data” in the Company’s 2023 Form 10-K and this Note 1 for additional information on the Company’s significant accounting policies. Except as set forth below with respect to acquisition accounting, there have not been any significant changes to the Company’s accounting policies from those disclosed in the Company’s 2023 Form 10-K that could have a material effect on the Company’s financial statements. Acquisition Accounting The Company accounts for its mergers and acquisitions that qualify as a business combination under ASC 805, Business Combinations, which requires the use of the acquisition method of accounting, resulting in all identifiable assets acquired and liabilities assumed being recorded at their fair values as of the acquisition date, with the acquisition and merger-related transaction expenses and restructuring costs expensed in the period incurred. The determination of fair values requires management to make estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and subject to change. The excess of the consideration paid over the fair value of the net assets acquired is recorded as goodwill. The results of operations of the acquired entity are included in the consolidated statement of income from the acquisition date. The Company evaluates acquired loans at the acquisition date and classifies them as either – (1) loans that have experienced a more-than insignificant amount of credit deterioration since origination (“PCD” loans) or (2) loans that have not experienced a more-than insignificant amount of credit deterioration since origination (“non-PCD” loans). At acquisition, the allowance on PCD loans is booked directly to the ACL using the Company’s existing ACL methodology, but there is no initial impact to net income. Subsequent to acquisition, future changes in estimates of expected credit losses on PCD loans are recognized as provision expense (or reversal of provision expense). The ACL for non-PCD loans is recognized as provision expense in the same reporting period as the business acquisition, using the Company’s existing ACL methodology. See Note 1 “Summary of Significant Accounting Policies” in the “Notes to the Consolidated Financial Statements” contained in Item 8 “Financial Statements and Supplementary Data” in the Company’s 2023 Form 10-K for additional information on the Company’s accounting policy over acquired loans and ACL. Under ASC 805, the Company may adjust provisional fair values of assets acquired and liabilities assumed in a business combination for a measurement period of up to one year from the acquisition date if additional information about the facts and circumstances that existed as of the acquisition date becomes available. Any future measurement period adjustments, if necessary, will be recognized in the reporting period in which the adjustment amount is determined. See also Note 2 “Acquisitions” in this Form 10-Q for additional discussion of the Company’s acquisitions.

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