Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of segment reporting information, by segment

Newmark recognized revenues as follows (in thousands): 

	Year Ended December 31,
	2020		2019		2018
Leasing and other commissions	$	513,842	$	854,780	$	817,435
Capital markets commissions	454,106		541,255		468,904
Gains from mortgage banking activities/origination, net	310,914		198,085		182,264
Management services, servicing fees and other	626,136		624,012		578,976
Revenues	$	1,904,998	$	2,218,132	$	2,047,579

Schedule of estimated useful lives of fixed assets

Fixed assets are depreciated over their estimated useful lives as follows:

Leasehold improvements and other fixed assets	shorter of the remaining term of lease or useful life
Software, including software development costs	3-5 years straight-line
Computer and communications equipment	3-5 years straight-line