Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.20.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2020
Oct. 28, 2020
Entity Registrant Name ATLANTIC UNION BANKSHARES CORP  
Entity Central Index Key 0000883948  
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-39325  
Entity Tax Identification Number 54-1598552  
Entity Incorporation, State or Country Code VA  
Entity Address, Address Line One 1051 East Cary Street  
Entity Address, Address Line Two Suite 1200  
Entity Address, City or Town Richmond  
Entity Address, State or Province VA  
Entity Address, Postal Zip Code 23219  
City Area Code 804  
Local Phone Number 633-5031  
Document Period End Date Sep. 30, 2020  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2020  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   78,718,695
Common Stock, Class A    
Title of 12(b) Security Common Stock, par value $1.33 per share  
Trading Symbol AUB  
Security Exchange Name NASDAQ  
Series A Preferred Stock    
Title of 12(b) Security Depositary Shares, Each Representing a 1/400th Interest in a Share of 6.875% Perpetual Non-Cumulative Preferred Stock, Series A  
Trading Symbol AUBAP  
Security Exchange Name NASDAQ