Atlantic Union Bankshares Corporation Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

SECURITIES AND OTHER INVESTMENTS (Narrative) (Details)

v3.26.1

SECURITIES AND OTHER INVESTMENTS (Narrative) (Details)	3 Months Ended	12 Months Ended
SECURITIES AND OTHER INVESTMENTS (Narrative) (Details)	Mar. 31, 2026 USD ($) security	Dec. 31, 2025 USD ($) security
Schedule Of Debt Investments [Line Items]
Available for sale securities past due or non-accrual	$ 0	$ 0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	327,587,000	313,266,000
AFS securities in an unrealized loss, credit related impairment	0	0
Available for sale securities, allowance for credit losses	0	0
HTM securities past due or non accrual	0	0
Restricted equity securities consist of Federal Reserve Bank stock	141,200,000	141,200,000
Federal Home Loan Bank Stock	$ 36,300,000	$ 49,000,000
Restricted equity securities as a percentage of outstanding borrowings, required by FHLB	4.75%	4.75%
Restricted equity securities as a percentage of outstanding borrowings, required by FRB	6.00%	6.00%
Held-to-Maturity Securities
Schedule Of Debt Investments [Line Items]
Accrued interest receivable	$ 7,800,000	$ 9,900,000
Available-for-sale Securities
Schedule Of Debt Investments [Line Items]
Available for sale securities that had been in a continuous loss position for more than 12 months, Number of issues \| security	693	703
Accrued interest receivable	$ 13,800,000	$ 15,000,000
Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Schedule Of Debt Investments [Line Items]
SSFA rating percentage	20.00%	20.00%

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Debt Securities Available for Sale Nonaccrual.

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Restricted equity securities as a percentage of outstanding borrowings, required by the Federal Reserve Bank.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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