Balance Sheet Components - Narrative (Details) - USD ($)		12 Months Ended
	Nov. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Mar. 01, 2022
Property, Plant and Equipment [Line Items]
Depreciation expense		$ 2,900,000	$ 3,200,000	$ 3,700,000
Capitalized costs		13,800,000	7,500,000	5,000,000
Internal-use software and platform development costs capitalized, amortization expense		$ 6,500,000	4,900,000	5,900,000
Intangible asset, useful life		2 years
Amortization of intangible assets		$ 0	0	700,000
Operating lease cost		6,300,000	6,600,000	6,000,000
Sublease income		1,700,000	1,600,000	500,000
Variable lease cost		2,200,000	2,200,000	1,200,000
Operating lease payments		6,800,000	6,600,000	6,400,000
Impairment expense		$ 0	0	8,741,000
Long-term purchase commitment, period		5 years
Weighted average remaining lease term		3 years 3 months 18 days
Operating lease, weighted average discount rate		5.90%
Cost of revenue
Property, Plant and Equipment [Line Items]
Internal-use software and platform development costs capitalized, amortization expense		$ 4,500,000	$ 2,700,000	$ 3,800,000
San Francisco, California
Property, Plant and Equipment [Line Items]
Monthly rent expense					$ 100,000
Santa Clara, California
Property, Plant and Equipment [Line Items]
Extended amended sub sub-lease term	51 months
Monthly rent expense	$ 100,000
Minimum
Property, Plant and Equipment [Line Items]
Operating lease, term		1 year
Maximum
Property, Plant and Equipment [Line Items]
Operating lease, term		5 years
Assembled Workforce
Property, Plant and Equipment [Line Items]
Remaining useful life for the assembled workforce intangible asset		1 year 11 months 1 day