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

Quarterly report [Sections 13 or 15(d)]

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details)

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
ASSETS
Securities available for sale, at fair value	$ 4,011,410	$ 4,194,301
Loans held for sale	20,776	18,486
Financial Derivatives	100,932	112,686
LIABILITIES
Financial Derivatives	157,130	166,690
Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	88,830	88,946
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	3,922,580	4,105,355
Loans held for sale	20,776	18,486
Financial Derivatives	100,932	112,686
LIABILITIES
Financial Derivatives	157,130	166,690
Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
Fair Value, Recurring [Member]
ASSETS
Loans held for sale	20,776	18,486
Financial Derivatives	100,932	112,686
LIABILITIES
Financial Derivatives	157,130	166,690
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Loans held for sale	20,776	18,486
Financial Derivatives	100,932	112,686
LIABILITIES
Financial Derivatives	157,130	166,690
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
US Government Agencies Debt Securities [Member]
ASSETS
Securities available for sale, at fair value	102,103	104,002
US Government Agencies Debt Securities [Member] \| Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	102,103	104,002
US Government Agencies Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	88,830	88,946
US Government Agencies Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	13,273	15,056
US Government Agencies Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
US States and Political Subdivisions Debt Securities [Member]
ASSETS
Securities available for sale, at fair value	472,204	487,885
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	472,204	487,885
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	472,204	487,885
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Corporate Bond Securities [Member]
ASSETS
Securities available for sale, at fair value	213,010	217,934
Corporate Bond Securities [Member] \| Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	213,010	217,934
Corporate Bond Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Corporate Bond Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	213,010	217,934
Corporate Bond Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	3,222,113	3,382,524
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	3,222,113	3,382,524
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Securities, Other [Member]
ASSETS
Securities available for sale, at fair value	1,980	1,956
Collateralized Securities, Other [Member] \| Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	1,980	1,956
Collateralized Securities, Other [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Securities, Other [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	1,980	1,956
Collateralized Securities, Other [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	$ 0	$ 0