Business Combinations - Summary of Information About Purchased Credit Impaired (PCI) Loans (Details) - Fauquier Bankshares, Inc [Member] - USD ($) $ in Thousands		12 Months Ended
Apr. 01, 2021	Dec. 31, 2021
Schedule Of Information About Purchased Credit Impaired Loans [Line Items]
Contractual principal and interest at acquisition	$ 136,476	$ 448,780
Nonaccretable difference	(33,712)
Expected cash flows at acquisition	102,764
Accretable yield	(15,499)	$ (15,499)
Basis in PCI loans at acquisition, estimated fair value	$ 87,265

Amount of additions to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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Amount of reclassification (to) from nonaccretable difference (from) to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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Amount of cash flows expected to be collected at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Line items representing schedule of information about purchased credit impaired loans.

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