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

SEGMENT REPORTING AND REVENUE (Disaggregation of Noninterest Expense by Reportable Operating Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Noninterest Expenses [Line Items]
Salaries and benefits	$ 113,413	$ 75,415
Occupancy expenses	13,202	8,580
Technology and data processing	15,602	10,188
Furniture and equipment expenses	5,555	3,914
Loan-related expenses	2,851	1,249
Other expenses	59,187	34,838
Total noninterest expenses	209,810	134,184
Operating segments \| Wholesale Banking
Disaggregation of Noninterest Expenses [Line Items]
Salaries and benefits	35,519	20,684
Occupancy expenses	376	236
Technology and data processing	1,758	886
Furniture and equipment expenses	84	62
Loan-related expenses	829	113
Other expenses	55,224	33,231
Total noninterest expenses	93,790	55,212
Operating segments \| Consumer Banking
Disaggregation of Noninterest Expenses [Line Items]
Salaries and benefits	28,171	19,936
Occupancy expenses	8,385	5,166
Technology and data processing	274	179
Furniture and equipment expenses	1,592	994
Loan-related expenses	1,254	774
Other expenses	65,320	40,518
Total noninterest expenses	104,996	67,567
Corporate Other
Disaggregation of Noninterest Expenses [Line Items]
Salaries and benefits	49,723	34,795
Occupancy expenses	4,441	3,178
Technology and data processing	13,570	9,123
Furniture and equipment expenses	3,879	2,858
Loan-related expenses	768	362
Other expenses	(61,357)	(38,911)
Total noninterest expenses	$ 11,024	$ 11,405