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Revenue Recognition - Narrative (Details)	Sep. 30, 2023
Fixed Income and Data Services Segment \| Services transferred over time \| Services transferred over time related to risk management of open interest performance obligations \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 month

- Definition

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 + Details