Related Party Transactions - Service Agreements and Loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Related Party Transaction
Fees to related parties	$ 6,109	$ 7,088	$ 17,126	$ 21,035
Loans, forgivable loans and other receivables from employees and partners, net	479,792		479,792		$ 403,710
Compensation and employee benefits	304,677	397,683	859,228	1,030,997
Employee Loans
Related Party Transaction
Loans, forgivable loans and other receivables from employees and partners, net	479,800		479,800		$ 403,700
Compensation and employee benefits	18,300	13,200	50,200	31,700
Cantor Fitzgerald Limited Partnership And B G C Partners Incorporation
Related Party Transaction
Fees to related parties	$ 6,100	$ 7,100	$ 17,100	$ 21,000

The aggregate amount of expenditures for salaries, wages, profit sharing and incentives compensation, and other employee benefits, including share-based compensation and the expense related to allocation of income to limited partnership units and founding/working partner units.

No definition available.

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Amounts due from an Entity employee, not to include stockholders or officers, which are usually due after 1 year (or 1 business cycle).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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-Name Accounting Standards Codification
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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.

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