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Merger - Summary of Acquired and Accounted for in Accordance With ASC 310-30 (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Carrying amount	$ 2,328,614	$ 1,997,879
Comunibanc Corp [Member] | Acquired Loans with Specific Evidence of Deterioration of Credit Quality (ASC 310-30) [Member]
Business Acquisition [Line Items]
Outstanding balance	4,421
Carrying amount	$ 3,774

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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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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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