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

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets Measured on a Nonrecurring Basis) (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Collateral Pledged [Member]
ASSETS
Reserves related to collateral dependent loans	$ 299,000	$ 13,100,000
Fair Value, Nonrecurring [Member]
ASSETS
Individually assessed loans	1,736,000	14,636,000
Fair Value, Nonrecurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Individually assessed loans	0	0
Fair Value, Nonrecurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Individually assessed loans	0	0
Fair Value, Nonrecurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Individually assessed loans	$ 1,736,000	$ 14,636,000

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.