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Revenue, Other Income and Other Gain - Schedule of Amount of Revenue Recognized (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure of Analysis of Revenue [Line Items] |  |  |
Revenue recognized | $ 895 | $ 81 | $ 6,000
Capital Market Solutions [Member] |  |  |
Disclosure of Analysis of Revenue [Line Items] |  |  |
Revenue recognized |  | $ 81 | $ 6,000
Digital Solutions And Other Services [Member] |  |  |
Disclosure of Analysis of Revenue [Line Items] |  |  |
Revenue recognized | $ 895 |  |

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-8 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-2 + Details
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