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Significant Accounting Policies - Summary of Revenue Recognized from Contract Liabilities and Remaining Balance (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 USD ($)
Significant Accounting Policies [Line Items] |
Deferred revenues, beginning balance | $ 5,003
Revenue billed in advance of services to be performed | 43,007
Revenue recognized for services performed during the period | (43,070)
Foreign Currency Translation | 91
Deferred revenues, ending balance | 5,031
Information Services [Member] |
Significant Accounting Policies [Line Items] |
Deferred revenues, beginning balance | 3,302
Revenue billed in advance of services to be performed | 15,512
Revenue recognized for services performed during the period | (15,471)
Deferred revenues, ending balance | 3,343
Post-trade Services [Member] |
Significant Accounting Policies [Line Items] |
Deferred revenues, beginning balance | 1,286
Revenue billed in advance of services to be performed | 21,552
Revenue recognized for services performed during the period | (21,553)
Foreign Currency Translation | 91
Deferred revenues, ending balance | 1,376
Technology Services [Member] |
Significant Accounting Policies [Line Items] |
Deferred revenues, beginning balance | 415
Revenue billed in advance of services to be performed | 5,943
Revenue recognized for services performed during the period | (6,046)
Deferred revenues, ending balance | $ 312

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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 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-11 Reference 2: 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 3: 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 4: 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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