Atlantic Union Bankshares Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS (Narrative) (Details)

SUBSEQUENT EVENTS (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended						9 Months Ended
	Oct. 24, 2024	Oct. 21, 2024	Jun. 09, 2020	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Subsequent Event [Line Items]
Dividends on common stock (in dollars per share)				$ 0.32	$ 0.32	$ 0.32	$ 0.30	$ 0.30	$ 0.30	$ 0.96	$ 0.90
Dividends on preferred stock (in dollars per share)				171.88	$ 171.88	$ 171.88	$ 171.88	$ 171.88	$ 171.88
Common stock, par value (in dollars per share)				$ 1.33						$ 1.33		$ 1.33
Proceeds from issuance of common stock										$ 227	$ 563
Subsequent Event [Member] \| Sandy Spring [Member]
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)		$ 1.00
Stock conversion, par value (in dollars per share)		$ 1.33
Conversion ratio		0.90%
Subsequent Event [Member] \| Sandy Spring [Member] \| Morgan Stanley & Co. LLC [Member]
Subsequent Event [Line Items]
Shares issued and sold		9,859,155
Proceeds from sale of common stock, settlement period		18 months
Proceeds from issuance of common stock		$ 386,400
Subsequent Event [Member] \| Sandy Spring [Member] \| Underwriter
Subsequent Event [Line Items]
Shares issued and sold		1,478,873
Underwriter granted option period		30 days
Number of stocks option, granted		1,478,873
Subsequent Event [Member] \| Maximum [Member] \| Sandy Spring [Member] \| Morgan Stanley & Co. LLC [Member]
Subsequent Event [Line Items]
Sale of price per share		$ 35.50
Subsequent Event [Member] \| Minimum [Member] \| Sandy Spring [Member] \| Morgan Stanley & Co. LLC [Member]
Subsequent Event [Line Items]
Sale of price per share		$ 34.08
O 2024 Q4 Preferred Dividends [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends payable, date declared	Oct. 24, 2024
Common Class A [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends on common stock (in dollars per share)	$ 0.34
Common Class A [Member] \| O 2024 Q4 Common Dividends [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends payable, date to be paid	Nov. 22, 2024
Dividends payable, date of record	Nov. 08, 2024
Depositary Shares
Subsequent Event [Line Items]
Shares issued and sold			6,900,000
Depositary Shares \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends on preferred stock (in dollars per share)	$ 0.43
Series A Preferred Stock [Member]
Subsequent Event [Line Items]
Number of preferred stock represented by each depositary share			each representing a 1/400th ownership interest in a share of its Series A preferred stock
Series A Preferred Stock [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Number of preferred stock represented by each depositary share	each representing a 1/400th ownership interest in a share of Series A preferred stock
Dividends on preferred stock (in dollars per share)	$ 171.88
Series A Preferred Stock [Member] \| O 2024 Q4 Preferred Dividends [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends payable, date to be paid	Dec. 02, 2024
Dividends payable, date of record	Nov. 15, 2024