Fair Value Measurements - Equity Securities without Readily Determinable Fair Value (Details) $ in Thousands	12 Months Ended
Dec. 31, 2023 USD ($) company	Dec. 31, 2022 USD ($)
Fair Value Disclosures [Abstract]
Carrying value	$ 37,496	$ 33,362
Upward changes for observable prices, cumulative amount	18,038	17,367
Downward changes for observable prices, cumulative amount	(2,014)	(1,764)
Net gain (loss), cumulative amount	16,024	15,603
Annual Adjustments
Upward changes for observable prices	671	203
Downward changes for observable prices	(250)	(1,652)
Net gain (loss)	421	(1,449)
Equity Securities without Readily Determinable Fair Value [Line Items]
Carrying value	37,496	$ 33,362
Fintech Investment Portfolio
Fair Value Disclosures [Abstract]
Carrying value	$ 36,400
Equity Securities without Readily Determinable Fair Value [Line Items]
Number of companies \| company	10
Carrying value	$ 36,400
Other Security Investments
Fair Value Disclosures [Abstract]
Carrying value	1,100
Equity Securities without Readily Determinable Fair Value [Line Items]
Carrying value	$ 1,100

Equity Securities Without Readily Determinable Fair Value, Number Of Companies

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Net Gain (Loss) on Equity Securities without Readily Determinable Fair Value, Annual Amount

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Net Gain (Loss) on Equity Securities without Readily Determinable Fair Value, Cumulative Amount

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- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

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- Definition

Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

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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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

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Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

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Amount of cumulative gain from upward price adjustment on investment in equity security without readily determinable fair value.

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