Debt Instrument, Remaining Authorized Purchase Amount

No definition available.

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Period Type:	instant

- Definition

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

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Balance Type:	credit
Period Type:	instant

- Definition

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

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- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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Period Type:	instant

- Definition

Expense related to distribution, servicing and underwriting fees.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Balance Type:	credit
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- 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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- Definition

Number of new stock issued during the period.

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Related Party Transactions - CEO Program and Other Transactions with CF&Co (Details) - USD ($) shares in Millions					3 Months Ended
	Jun. 10, 2024	May 25, 2023	Jul. 10, 2020	Sep. 27, 2019	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Aug. 21, 2024	Jun. 11, 2020
Related Party Transaction [Line Items]
Long-term debt					$ 1,142,341,000		$ 1,141,709,000
Debt instrument, remaining authorized purchase amount					$ 49,500,000
Maximum
Related Party Transaction [Line Items]
Purchased senior notes									$ 50,000,000
3.750% Senior Notes due 10/1/2024
Related Party Transaction [Line Items]
Principal amount of debt component				$ 300,000,000.0
Stated interest rate				3.75%
BGC Partners 8.000% Senior Notes due May 25, 2028
Related Party Transaction [Line Items]
Principal amount of debt component		$ 350,000,000.0
Stated interest rate		8.00%			8.00%			8.00%
Debt instrument, repurchased face amount								$ 500,000
Long-term debt					$ 2,259,000		2,257,000	$ 500,000
BGC Partners 4.375% Senior Notes due December 15, 2025
Related Party Transaction [Line Items]
Principal amount of debt component			$ 300,000,000.0
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%
BGC Group 6.600% Senior Notes due June 10, 2029
Related Party Transaction [Line Items]
Principal amount of debt component	$ 500,000,000
Stated interest rate	6.60%
Long-term debt					$ 495,796,000		$ 495,546,000
Underwriting fees paid	$ 400,000
Related Party
Related Party Transaction [Line Items]
Issuance of common stock (in shares)					0.0	0.0
Related party expenses					$ 0	$ 0
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