Number of shares issued during the period related to redemptions and exchanges of limited partnership interests.

No definition available.

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- Definition

Number of units redeemed and cancelled for exchange.

+ References

No definition available.

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- Definition

Stock Issued During Period, Shares, Contingent Restricted Stock Award

+ References

No definition available.

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- Definition

Stock Issued During Period, Shares, Other, Net Of Adjustments

+ References

No definition available.

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- Definition

Stock issued during period shares restricted stock award vested.

+ References

No definition available.

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- References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Number of shares issued which are neither cancelled nor held in the treasury.

+ References

No definition available.

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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SX 210.5-02(28))
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-Topic 505
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- Definition

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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- Definition

Number of shares related to Restricted Stock Award forfeited during the period.

+ References

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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

+ References

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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Stock Transactions and Unit Redemptions - Changes in Shares of Class A Common Stock Outstanding (Detail) - shares	1 Months Ended						3 Months Ended						9 Months Ended
	Sep. 30, 2024	Aug. 31, 2024	Jul. 31, 2024	Sep. 30, 2023	Aug. 31, 2023	Jul. 31, 2023	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Share issuances:
Redemptions/exchanges of limited partnership interests (in shares)														29,118,664
Restricted stock awards (in shares)							0			38,610,233			0	38,610,233
Treasury stock repurchases (in shares)	(1,046,000)	(4,807,000)	(2,040,000)	(3,474,000)	(1,612,000)	(3,000,000)	(7,893,000)	(10,688,000)	(11,250,000)	(8,087,000)	(9,814,000)	(846,000)	(29,831,000)	(18,747,000)
Contingent restricted stock issued (in shares)													12,100,000
Limited Partnership
Share issuances:
Number of units redeemed and cancelled for exchange (in shares)							200,000			200,000			1,400,000	26,400,000
Class A Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares outstanding at beginning of period (in shares)			379,588,000			351,978,000	379,588,000		390,095,000	351,978,000		325,858,000	390,095,000	325,858,000
Share issuances:
Redemptions/exchanges of limited partnership interests (in shares)							180,000			346,000			1,298,000	30,572,000
Vesting of RSUs (in shares)							2,507,000			6,145,000			8,192,000	8,775,000
Acquisitions (in shares)							70,371			414,000			542,626	4,566,000
Other issuances of BGC class A common stock (in shares)							1,278,000			461,000			6,106,000	472,000
Restricted stock forfeitures (in shares)							(299,935)			0			(972,567)	(238,927)
Treasury stock repurchases (in shares)							(7,013,116)			(8,086,750)			(26,264,523)	(18,746,467)
Shares outstanding at end of period (in shares)	375,430,000			389,867,000			375,430,000	379,588,000		389,867,000	351,978,000		375,430,000	389,867,000
Conversion, shares issued (in shares)							200,000			200,000			1,300,000	20,400,000
Contingent restricted stock issued (in shares)														200,000