Minimum Regulatory Capital Requirements - Summary of Capital Requirements Administered by Banking Agencies Capital Ratios (Detail) - Blue Ridge Bank, N.A [Member] $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total risk based capital, Actual Amount	$ 367,696	$ 270,293
Total risk based capital, Actual Ratio	0.1518	0.1025
Total risk based capital, For Capital Adequacy Purposes Amount	$ 254,335	$ 276,842
Total risk based capital, For Capital Adequacy Purposes Ratio	0.105	0.105
Total risk based capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 242,224	$ 263,659
Total risk based capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.10	0.10
Capital Required for Individual Minimum Capital Ratio	$ 314,891	$ 342,757
Capital Required Minimum Capital Ratio To Risk Weighted Assets	13.00%	13.00%
Tier 1 capital to risk-weighted assets, Actual Amount	$ 343,744	$ 239,775
Tier 1 capital to risk-weighted assets, Actual Ratio	0.1419	0.0909
Tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Amount	$ 205,907	$ 224,111
Tier 1 capital to risk-weighted assets, For Capital Adequacy Purposes Ratio	0.085	0.085
Tier 1 capital to risk-weighted assets, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 193,795	$ 210,928
Tier 1 capital to risk-weighted assets, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.08	0.08
Common equity tier 1 capital, Actual Amount	$ 343,744	$ 239,775
Common equity tier 1 capital, Actual Ratio	14.19%	9.09%
Common equity tier 1 capital, For Capital Adequacy Purposes Amount	$ 169,571	$ 184,562
Common equity tier 1 capital, For Capital Adequacy Purposes Ratio	7.00%	7.00%
Common equity tier 1 capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 157,458	$ 171,379
Common equity tier 1 capital, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 leverage, Actual Amount	$ 343,744	$ 239,775
Tier 1 leverage, Actual Ratio	0.1102	0.0749
Tier 1 leverage, For Capital Adequacy Purposes Amount	$ 124,771	$ 128,001
Tier 1 leverage, For Capital Adequacy Purposes Ratio	0.04	0.04
Tier 1 leverage, To Be Well Capitalized Under the Prompt Corrective Action Provisions Amount	$ 155,964	$ 160,001
Tier 1 leverage, To Be Well Capitalized Under the Prompt Corrective Action Provisions Ratio	0.05	0.05
Tier 1 leverage, Individual Minimum Capital Ratio Amount	$ 311,927	$ 320,003
Tier 1 leverage, Individual Minimum Capital Ratio	10.00%	10.00%