Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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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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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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The carrying amount, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of FHLB debt obligations, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.

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Loans and Allowance for Loan Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	$ 1,867,284		$ 1,808,484
Proceeds from sale of loans held for sale	234,550	$ 412,139
Nonperforming trouble debt restructuring	673		688
Mortgage loans in process of foreclosure, amount	0
Substandard [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	32,661		37,315
FHLB [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans pledged	423,300
Commercial and Residential Mortgages [Member] \| FHLB [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans pledged			478,300
Pay Check Protection Loans [Member] \| Paycheck Protection Plan Liquidity Facility Advances [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans pledged	15,200		17,900
Paycheck Protection Program [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	$ 22,902		$ 30,742