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Business Combinations - Summary of Business Acquisition, Pro Forma Information (Details) - Bay Banks Of Virginia Inc [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Revenue (net interest income plus noninterest income)	$ 183,226	$ 152,473
Net income	$ 60,956	$ 26,107
Earnings per common share	$ 3.32	$ 1.42

X

- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

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-Name Accounting Standards Codification
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