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Business Combinations - Summary of Fair Value Adjustments of Acquired Asset and Assumed Liabilities (Detail) - Bay Banks [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Business Acquisition [Line Items]
Loans	$ 272
Time deposits	687
FHLB borrowings	2
Subordinated notes	35
CDI	(226)
Net impact to income before income taxes	$ 770

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Fair value adjustments of acquired asset and assumed liabilities before tax.

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Fair value adjustments of core deposits acquired.

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Fair value adjustments of subordinated notes acquired.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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