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

ACQUISITIONS (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended				0 Months Ended	3 Months Ended		9 Months Ended
ACQUISITIONS (Narrative) (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Jan. 01, 2014 StellarOne Bank [Member]	Sep. 30, 2014 StellarOne Bank [Member]	Sep. 30, 2013 StellarOne Bank [Member]	Sep. 30, 2014 StellarOne Bank [Member]	Sep. 30, 2013 StellarOne Bank [Member]	Jan. 01, 2014 StellarOne Bank [Member]	Jan. 01, 2014 StellarOne Bank [Member] Performing Financing Receivable [Member]
Business Acquisition [Line Items]
Number of shares equivalent to each share of acquired entity												0.9739
Number of common shares issued							22,147,874
Acquired performing loans, Fair value													$ 2,100,000,000
Value of Company common stock issued							549,489,000
Acquired performing loans, principal and interest payments receivable													2,500,000,000
Acquired performing loans not expected to be collected												35,400,000
Fair value of loans acquired with a deterioration of credit quality	119,743,000	3,951,000	119,743,000	3,951,000	3,622,000							145,454,000
Carry-over for allowance for credit losses	32,109,000	33,877,000	32,109,000	33,877,000	30,135,000	34,916,000
Acquisition and conversion costs	$ 1,695,000	$ 473,000	$ 19,524,000	$ 1,393,000				$ 1,695,000	$ 473,000	$ 19,524,000	$ 1,393,000