Balance Sheet Details

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Property and equipment, net

Property and equipment, net consisted of the following:


	December 31,
	2021		2020
Computers and equipment	$	487,484	$	442,778
Furniture and fixtures	1,511		1,511
Leasehold improvements	6,820		6,820
Internal-use software	68,321		61,640
Property and equipment, gross	$	564,136	$	512,749

Less: accumulated amortization	$	(49,268)	$	(36,186)
Less: accumulated depreciation	(265,225)		(237,607)
Property and equipment, net	$	249,643	$	238,956

Depreciation expense on property and equipment for the years ended December 31, 2021, 2020, and 2019 was $74,278, $62,016 and $53,707, respectively.

The Company capitalized costs related to the development of computer software for internal use of $7,307, $12,854 and $17,507 for the years ended December 31, 2021, 2020, and 2019, respectively, which is included in internal-use software costs within Property and equipment, net. Amortization expense related to internal-use software for the years ended December 31, 2021, 2020, and 2019 was $13,424, $13,255, and $9,146, respectively.

During the years ended December 31, 2021, 2020, and 2019, the Company recorded an impairment loss of $285, $1,222, and $546, respectively, related to software that is no longer being used. This impairment loss is included in Cost of revenue and Research and development on the Consolidated Statements of Operations.

Accrued other expenses

Accrued other expenses consisted of the following:


	December 31,
	2021		2020
Accrued bonuses	$	19,083	$	12,512
Accrued capital expenditures	3,398		8,478
Other accrued expenses	9,426		6,035
Total accrued other expenses	$	31,907	$	27,025

Other current liabilities

Other current liabilities consisted of the following:


	December 31,
	2021		2020
Accrued taxes	$	6,755	$	7,758
Warrant liability	—		14,463
ESPP withholding	1,495		—
Other	599		765
Total other current liabilities	$	8,849	$	22,986