Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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+ Details

Related Party Transactions - Cantor Aurel Revenue Sharing Agreement (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 24, 2021	Dec. 31, 2021	Dec. 31, 2022
Related Party Transaction [Line Items]
Payables to related parties		$ 53,764	$ 10,550
Aurel BGC SAS \| Cantor
Related Party Transaction [Line Items]
Recognized related party revenues		2,500
Payables to related parties		$ 1,700
Aurel BGC SAS \| Cantor
Related Party Transaction [Line Items]
Related party transactions, percentage of revenue shared between entities	80.00%
Related party transactions, revenue sharing agreement, term	12 months
Related party transactions, revenue sharing agreement, termination notice term (at least)	3 months