Summary of Significant Accounting Policies - Summary of Estimated Useful Life of Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Computer Equipment and Purchased Software
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Internal-use Software
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Estimated Useful Life	Shorter of useful life or remaining life of lease