Summary of Business and Significant Accounting Policies (Details) $ / shares in Units, $ in Millions	1 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares	Nov. 30, 2020 shares	Oct. 31, 2021 shares	Apr. 30, 2021 shares
Subsidiary, Sale of Stock [Line Items]
Reverse stock split ratio, common stock		0.1667
Deferred offering costs reclassified into stockholders' equity as a reduction of the IPO proceeds | $	$ 7.2
IPO
Subsidiary, Sale of Stock [Line Items]
Net proceeds received | $	694.6
Private Placement
Subsidiary, Sale of Stock [Line Items]
Net proceeds received | $	$ 150.0
Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, shares authorized (in shares)		390,000,000	1,000,000,000	1,000,000,000
Class A Common Stock | IPO
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued (in shares)	17,825,000
Sale of stock, shares issued, price per share (in dollars per share) | $ / shares	$ 42.00
Class A Common Stock | Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued (in shares)	2,325,000
Class A Common Stock | Private Placement
Subsidiary, Sale of Stock [Line Items]
Sale of stock, shares issued, price per share (in dollars per share) | $ / shares	$ 42.00
Class A Common Stock | Private Placement | Spring Creek Capital LLC
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued (in shares)	2,380,952
Class A Common Stock | Private Placement | Microsoft Corporation
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued (in shares)	1,190,476
Class A-1 Common Stock
Subsidiary, Sale of Stock [Line Items]
Shares authorized (in shares)		6,666,667
Conversion of stock, converted (in shares)	6,666,665
Conversion ratio	1
Class B Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, shares authorized (in shares)		21,000,000	3,500,000	3,500,000
Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Shares authorized (in shares)		233,107,379
Redeemable Convertible Preferred Stock, Excluding Series A Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Conversion of stock, converted (in shares)	33,628,776
Conversion ratio	1
Series A Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Conversion of stock, converted (in shares)	3,499,992
Conversion ratio	1