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Compensation (Tables) | 6 Months Ended
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Jun. 30, 2019
Summary of Activity of Number of Share Equivalent Limited Partnership Units and Post IPO Grants | A summary of the activity of the number of share-equivalent limited partnership units and post-IPO grants of Newmark limited partnership units held by Newmark employees in Newmark Holdings is as follows:
|  | Number of Units |  |
Balance at January 1, 2018 |  |  | 29,413,143 |
Granted |  |  | 19,141,943 |
Redeemed/exchanged units |  |  | (3,793,351 | )
Forfeited units |  |  | (28,248 | )
Balance at December 31, 2018 |  |  | 44,733,487 |
Granted |  |  | 10,746,929 |
Redeemed/exchanged units |  |  | (880,960 | )
Forfeited units/Other |  |  | 4,846,170 |
Balance at June 30, 2019 |  |  | 59,445,626 |
Activity Associated with Restricted Stock Units | A summary of the activity associated with RSUs in BGC held by Newmark employees is as follows:
|  | Restricted Stock Units |  |  | Weighted- Average Grant Date Fair Value |  |  | Weighted- Average Remaining Contractual Term (Years) |
Balance at January 1, 2018 |  |  | 346,538 |  |  | $ | 9.56 |  |  |  | 1.85 |
Granted |  |  | 3,439 |  |  |  | 7.64 |  |  |  |  |
Settled units (delivered shares) |  |  | (147,006 | ) |  |  | 9.17 |  |  |  |  |
Forfeited units |  |  | (34,296 | ) |  |  | 10.01 |  |  |  |  |
Balance at December 31, 2018 |  |  | 168,675 |  |  |  | 9.77 |  |  |  | 0.98 |
Granted |  | — |  |  |  |  |  |  |  |  |
Settled units (delivered shares) |  |  | (84,984 | ) |  |  | 9.29 |  |  |  |  |
Forfeited units |  |  | (9,862 | ) |  |  | 9.94 |  |  |  |  |
Balance at June 30, 2019 |  |  | 73,829 |  |  | $ | 10.30 |  |  |  | 0.70 |
A summary of the activity associated with RSUs in Newmark held by Newmark employees is as follows:
|  | Restricted Stock Units |  |  | Weighted- Average Grant Date Fair Value |  |  | Weighted- Average Remaining Contractual Term (Years) |
Balance at January 1, 2018 |  |  | — |  |  | $ | — |  |  |  | — |
Granted |  |  | 264,532 |  |  |  | 13.54 |  |  |  |  |
Settled units (delivered shares) |  |  | (8,109 | ) |  |  | 13.36 |  |  |  |  |
Forfeited units |  |  | (36,536 | ) |  |  | 13.71 |  |  |  |  |
Balance at December 31, 2018 |  |  | 219,887 |  |  |  | 13.52 |  |  |  | 2.28 |
Granted |  |  | 2,191,303 |  |  |  | 7.53 |  |  |  |  |
Settled units (delivered shares) |  |  | (55,669 | ) |  |  | 13.89 |  |  |  |  |
Forfeited units |  |  | (28,859 | ) |  |  | 11.30 |  |  |  |  |
Balance at June 30, 2019 |  |  | 2,326,662 |  |  | $ | 7.56 |  |  |  | 4.69 |
BGC Holdings, L.P. [Member] |
Activity Associated with Limited Partnership Units | A summary of the activity associated with limited partnership units held by Newmark employees in BGC Holdings is as follows:
|  | Number of Units |
Balance at January 1, 2018 |  |  | 64,708,915 |
Granted |  |  | 2,872,825 |
Redeemed/exchanged units |  |  | (5,650,292 | )
Forfeited units |  |  | (60,479 | )
Balance at December 31, 2018 |  |  | 61,870,969 |
Granted |  |  | 270,515 |
Redeemed/exchanged units |  |  | (1,938,794 | )
Forfeited units |  |  | (2,083,897 | )
Balance at June 30, 2019 |  |  | 58,118,793 |

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- Definition Tabular disclosure for share-based compensation plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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