Property and Equipment

6 Months Ended

Jun. 30, 2021

Property, Plant and Equipment [Abstract]

Property and equipment, net consisted of the following (in thousands):


	As of June 30, 2021		As of December 31, 2020
Computer equipment and software	$	149,231	$	139,147
Leasehold improvements	56,304		56,401
Furniture and fixtures	12,698		12,955
Machinery and equipment	160		160
Total property and equipment	218,393		208,663
Less: accumulated depreciation	(152,507)		(144,327)
Total property and equipment, net	$	65,886	$	64,336

Depreciation and amortization expense related to property and equipment during the three months ended June 30, 2021 and 2020 was $7.7 million and $5.9 million, respectively. Depreciation and amortization expense related to property and equipment during the six months ended June 30, 2021 and 2020 was $16.3 million and $11.1 million, respectively.

During the three months ended June 30, 2021 and 2020, we capitalized $4.8 million and $3.4 million, respectively, of software development costs primarily related to our platform and cloud subscription offerings. Amortization expense related to capitalized software development costs during the three months ended June 30, 2021 and 2020 were $3.0 million and $2.6 million, respectively. During the six months ended June 30, 2021 and 2020, we capitalized $8.8 million and $7.9 million, respectively, of software development costs primarily related to our platform and cloud subscription offerings. Amortization expense related to capitalized software development costs during the six months ended June 30, 2021 and 2020 were $6.0 million and $4.7 million, respectively.

Refer to Note 7 Restructuring Charges regarding fixed assets write-offs.