Summary of Significant Accounting Policies (Details) - USD ($)		1 Months Ended	12 Months Ended
	Apr. 01, 2021	Apr. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2023
Organization and Significant Accounting Policies [Line Items]
Shares of common stock authorized			10,000,000	10,000,000
Shares of common stock, par value per share			$ 2.50	$ 2.50
Preferred stock authorized			2,000,000	2,000,000
Preferred stock, par value per share			$ 2.50	$ 2.50
Preferred stock, shares outstanding			0	0
Securities, allowance for credit losses			$ 0
Unrecognized tax benefits, interest or penalties recognized			0	$ 0
Adjustment to retained earnings			$ 73,781,000	$ 63,482,000
ASU 2016-13 [Member]
Organization and Significant Accounting Policies [Line Items]
Adjustment to retained earnings					$ 1,900,000
Minimum [Member]
Organization and Significant Accounting Policies [Line Items]
Estimated useful lives of assets			3 years
Estimated useful lives of intangible assets			3 years
Maximum [Member]
Organization and Significant Accounting Policies [Line Items]
Estimated useful lives of assets			40 years
Estimated useful lives of intangible assets			10 years
Fauquier Bankshares, Inc [Member]
Organization and Significant Accounting Policies [Line Items]
Acquisition date	Apr. 01, 2021
Business acquisition, total consideration paid		$ 78,000,000
Special Properties Acquisition - VA, LLC [Member]
Organization and Significant Accounting Policies [Line Items]
Other real estate owned, net			$ 0