Property and Equipment

3 Months Ended

Mar. 31, 2021

Property, Plant and Equipment [Abstract]

The components of property and equipment were as follows:


	Useful Lives (Years)	March 31, 2021		December 31, 2020

Leasehold improvements	Shorter of lease term or economic life	$	31,132	$	29,558
Website and software development costs	2-3	35,308		33,278
Computer and office equipment	3	9,922		7,765
Software	3	1,871		1,858
Furniture	7	7,277		7,450
Property and equipment, gross		85,510		79,909
Accumulated depreciation and amortization		(45,254)		(41,614)
Construction in progress		7,393		5,693
Property and equipment, net		$	47,649	$	43,988

Depreciation and amortization expense for property and equipment amounted to $4,219 and $3,186 for the three months ended March 31, 2021 and 2020, respectively. We capitalized software development costs, including stock-based compensation, of $3,365 and $2,677 for the three months ended March 31, 2021 and 2020, respectively.