Property and Equipment, net

9 Months Ended

Sep. 30, 2020

Property, Plant and Equipment [Abstract]

The following table presents the detail of property and equipment as of the dates presented (in thousands):


	September 30, 2020		December 31, 2019
Website development costs	$	165,950	$	149,648
Leasehold improvements	120,259		81,981
Office equipment, furniture and fixtures	43,311		36,582
Construction-in-progress	39,730		45,337
Computer equipment	30,560		31,942
Property and equipment	399,810		345,490
Less: accumulated amortization and depreciation	(201,567)		(175,001)
Property and equipment, net	$	198,243	$	170,489

We recorded depreciation expense related to property and equipment (other than website development costs) of $7.3 million and $6.1 million during the three months ended September 30, 2020 and 2019, respectively, and $26.2 million and $18.5 million during the nine months ended September 30, 2020 and 2019, respectively.

We capitalized $15.0 million and $10.8 million in website development costs during the three months ended September 30, 2020 and 2019, respectively, and $42.9 million and $31.1 million during the nine months ended September 30, 2020 and 2019, respectively. Amortization expense for website development costs included in technology and development expenses was $6.2 million and $4.8 million during the three months ended September 30, 2020 and 2019, respectively, and $17.6 million and $11.8 million during the nine months ended September 30, 2020 and 2019, respectively.