Debt Instrument, Remaining Authorized Purchase Amount

No definition available.

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Namespace Prefix:	bgcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Expense related to distribution, servicing and underwriting fees.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This represents the company's cost incurred during an accounting period for managing the money in a fund, which will be billed back to the client and is a component of noninterest expenses.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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.

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Period Type:	duration

- Definition

Number of new stock issued during the period.

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- Details

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Related Party Transactions - CEO Program and Other Transactions with CF&Co (Details) - USD ($) shares in Millions					3 Months Ended
	May 25, 2023	Jul. 10, 2020	Sep. 27, 2019	Jul. 24, 2018	Mar. 31, 2024	Mar. 31, 2023	Jun. 11, 2020
Related Party Transaction [Line Items]
Debt instrument, remaining authorized purchase amount					$ 50,000,000
Maximum
Related Party Transaction [Line Items]
Purchased senior notes							$ 50,000,000
5.375% Senior Notes due 2023
Related Party Transaction [Line Items]
Principal amount of debt component				$ 450,000,000
Stated interest rate				5.375%
3.750% Senior Notes due 10/1/2024
Related Party Transaction [Line Items]
Principal amount of debt component			$ 300,000,000
Stated interest rate			3.75%
BGC Partners 4.375% Senior Notes due December 15, 2025
Related Party Transaction [Line Items]
Principal amount of debt component		$ 300,000,000
Stated interest rate		4.375%
BGC Group 8.000% Senior Notes due May 25, 2028
Related Party Transaction [Line Items]
Principal amount of debt component	$ 350,000,000
Stated interest rate	8.00%				8.00%
Related Party
Related Party Transaction [Line Items]
Related party expenses					$ 0	$ 0
Issuance of common stock (in shares)					0.0	0.0
Related Party \| 5.375% Senior Notes due 2023
Related Party Transaction [Line Items]
Advisory fees				$ 200,000
Related Party \| 5.375% Senior Notes due 2023 \| Underwriting fees
Related Party Transaction [Line Items]
Related party expenses				$ 300,000
Related Party \| 3.750% Senior Notes due 10/1/2024 \| Underwriting fees
Related Party Transaction [Line Items]
Related party expenses			$ 200,000
Related Party \| BGC Partners 4.375% Senior Notes due December 15, 2025
Related Party Transaction [Line Items]
Purchased senior notes					$ 14,500,000
Related Party \| BGC Partners 4.375% Senior Notes due December 15, 2025 \| Underwriting fees
Related Party Transaction [Line Items]
Related party expenses		$ 200,000
Related Party \| BGC Group 8.000% Senior Notes due May 25, 2028 \| Underwriting fees
Related Party Transaction [Line Items]
Related party expenses	$ 200,000