Atlantic Union Bankshares Corporation Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

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

LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Narrative) (Details)

v3.25.4

LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Narrative) (Details)	12 Months Ended			24 Months Ended	36 Months Ended
	Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Jun. 26, 2025 USD ($)	Apr. 01, 2025 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain on CRE loan sale	$ 10,915,000	$ 0	$ 0
Nonaccrual loans, interest income	0	0	0
Loans under modified terms	45,424,000	35,177,000	51,237,000
Amortized Cost	45,424,000	35,177,000	51,237,000
Total Allowance for credit losses	$ 295,108,000	178,644,000	132,182,000	$ 295,108,000	$ 295,108,000
Number of reportable segments \| segment	2
Loans held for investment, accrued interest receivable	$ 106,500,000	$ 73,700,000		106,500,000	106,500,000
Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List Not Disclosed (Flag)	true	true
Accrued interest receivable write-offs	$ 0	$ 0	0
Revolving loans converted to term				0
Sandy Spring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principle balance of CRE loans acquired						$ 2,000,000,000
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Allowance for credit losses	232,813,000	148,887,000	105,896,000	232,813,000	232,813,000
CRE \| Sandy Spring
Accounts, Notes, Loans and Financing Receivable [Line Items]
LHFS							$ 1,839,638,000
Gain on CRE loan sale	10,900,000
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain on CRE loan sale	10,900,000
Troubled Loan Modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans under modified terms	0	0	0
Amortized Cost	$ 0	0	$ 0
Period for restructured loan to be considered default	90 days
Unfunded commitments on loans modified and designated as TLMs	$ 0	$ 0		$ 0	0
TLM loans that went into default					$ 0

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Amount of loans classified as held-for-sale acquired at the acquisition date.

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Carrying value of loans classified as held-for-sale acquired at the acquisition date.

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