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Loans Receivable - Summary of Nonaccrual Loans by Segment of Loan Portfolio (Detail) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans without a related allowance	$ 16,530	$ 8,230
Total nonaccrual loans with a related allowance	0	18,611
Commercial real estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans without a related allowance	15,312	6,939
Total nonaccrual loans with a related allowance	0	18,502
Commercial and industrial [Member]
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans without a related allowance	1,071	1,178
Total nonaccrual loans with a related allowance	0	109
Construction [Member]
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans without a related allowance	0	0
Total nonaccrual loans with a related allowance	0	0
Residential first-lien mortgage [Member]
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans without a related allowance	147	94
Total nonaccrual loans with a related allowance	0	0
Home equity/consumer [Member]
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans without a related allowance	0	19
Total nonaccrual loans with a related allowance	$ 0	$ 0

X

- Definition

Financing receivable nonaccrual with allowance for credit loss.

+ References

No definition available.

+ Details

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X

- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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