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Securities - Schedule of Components of Investment Securities (Losses) Gains, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Available-for-sale debt securities:
Gains realized on sales	$ 91		$ 514	$ 139
Equity securities with readily determinable fair values:
Fair value adjustments, net	(7,103)	$ 340	22,513	291
Equity securities without readily determinable fair values:
Fair value adjustments, net	2,919	738	(2,384)	(2,277)
Sales		1,545	8,167	11,974
Total investment securities (losses) gains, net	$ (4,093)	$ 2,623	$ 28,810	$ 10,127

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Equity securities with out readily determinable fair values adjustments net.

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Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
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