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Loans Receivable - Information on SBA Loans Held for Sale (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]
Balance at beginning of period	$ 12,013	$ 8,043
Originations and transfers	135,806	104,998	$ 150,825
Sales	(139,172)	(100,514)
Principal paydowns and amortization	(68)	(514)
Balance at end of period	8,579	12,013	8,043
Real Estate and Construction
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]
Balance at beginning of period	8,792	3,775
Originations and transfers	97,085	65,705
Sales	(101,830)	(60,611)
Principal paydowns and amortization	(53)	(77)
Balance at end of period	3,994	8,792	3,775
Commercial and Industrial
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]
Balance at beginning of period	3,221	4,268
Originations and transfers	38,721	39,293
Sales	(37,342)	(39,903)
Principal paydowns and amortization	(15)	(437)
Balance at end of period	$ 4,585	$ 3,221	$ 4,268

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- Definition

Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]

+ References

No definition available.

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Principal payoffs and amortization.

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- Definition

Amount, before valuation allowance, of financing receivable classified as held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477011/948-310-45-1

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- Definition

The amount of cash paid for the origination of mortgages that are held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-21

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

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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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-16

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-21

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