Class Of Common Stock Exchanged To Another Class Of Common Stock

No definition available.

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- Definition

Limited partnership interest distribution ratio.

+ References

No definition available.

+ Details

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- Definition

Limited partnership units exchange ratio.

+ References

No definition available.

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- Definition

Related Party Transaction Service Fees Paid

+ References

No definition available.

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- Definition

Number of exchangeable limited partnership units redeemed or exchanged into the Company's class A common stock during the period.

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

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- Definition

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

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- Definition

Number of units distributed for payment of a unit distribution to unit-holder of a limited liability company (LLC).

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- Definition

Number of units distributed for payment of a unit distribution to unit-holder of limited partnership (LP).

+ References

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- Definition

The number of limited partner units outstanding.

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- Definition

Total change in each class of partners' capital accounts during the year due to the sale of units. All partners include general, limited and preferred partners.

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- Definition

Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

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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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No definition available.

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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No definition available.

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Related Party Transactions - BGC's 2018 Investment in Newmark Holdings (Details) $ / shares in Units, shares in Millions				12 Months Ended
	Nov. 30, 2018 shares	Nov. 30, 2018 shares	Mar. 07, 2018 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Nov. 06, 2018 USD ($)	Dec. 13, 2017
Cantor
Related Party Transaction [Line Items]
Fees for services \| $				$ 4,000,000.0
Stated interest rate				2.45%
Newmark Units \| BGC Partners LP and its Operating Subsidiaries
Related Party Transaction [Line Items]
Purchase of units			16.6
Purchase value of units \| $			$ 242,000,000.0
Closing price per share (in dollars per share) \| $ / shares			$ 14.57
Limited partners capital account units held by BGC (in shares)			14.8
Number of limited partnership units exchangeable (in shares)	1.5
Limited partnership units exchange ratio				940,000
Newmark OpCo \| Newmark Units \| BGC Partners LP and its Operating Subsidiaries
Related Party Transaction [Line Items]
Limited partners capital account units held by BGC (in shares)			7.0
Limited partnership interests units (in shares)			7.0
Class A Common Stock
Related Party Transaction [Line Items]
Aggregate distribution of shares in spin-off (in shares)		131.9
Limited partnership units exchange ratio				0.9400		1
Class A Common Stock \| Newmark Units \| BGC Partners LP and its Operating Subsidiaries
Related Party Transaction [Line Items]
Number of shares, right to exchange from Class A to Class A or Class B common stock (in shares)			9.4
Class A Common Stock \| Newmark OpCo \| Newmark Units \| BGC Partners LP and its Operating Subsidiaries
Related Party Transaction [Line Items]
Number of shares, right to exchange from Class A to Class A or Class B common stock (in shares)			6.9
Class B Common Stock
Related Party Transaction [Line Items]
Aggregate distribution of shares in spin-off (in shares)		21.3
Class B Common Stock \| Newmark Units \| BGC Partners LP and its Operating Subsidiaries
Related Party Transaction [Line Items]
Number of shares, right to exchange from Class A to Class A or Class B common stock (in shares)			5.4
Cantor Fitzgerald, L.P. \| Newmark Units \| BGC Partners LP and its Operating Subsidiaries
Related Party Transaction [Line Items]
Aggregate distribution of shares in spin-off (in shares)			0.4
BGC Partners Inc
Related Party Transaction [Line Items]
Exchange ratio (per share)	97.93%	97.93%
BGC Partners Inc \| Class B Common Stock
Related Party Transaction [Line Items]
Exchange ratio (per share)	46.3895%	46.3895%
6.125% Senior Notes \| Cantor
Related Party Transaction [Line Items]
Debt instrument face amount \| $					$ 550,000,000.0
Stated interest rate					6.125%
Debt instrument, fee amount \| $					$ 800,000