Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Activity Associated with Limited Partnership Units

A summary of the activity associated with BGC Holdings limited partnership units is as follows:

	Number of Units
Balance at December 31, 2017		123,631,195
Granted		21,107,597
Redeemed/exchanged units		(10,640,015	)
Forfeited units		(38,689	)
Balance at June 30, 2018		134,060,088

Activity Associated with Restricted Stock Units

A summary of the activity associated with BGC RSUs is as follows:

	Restricted Stock Units			Weighted- Average Grant Date Fair Value		Weighted- Average Remaining Contractual Term (Years)
Balance at December 31, 2017		1,409,747		$	8.76		1.68
Granted		381,206			12.44
Delivered units		(528,311	)		8.49
Forfeited units		(52,721	)		9.66
Balance at June 30, 2018		1,209,921			9.99		1.83