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Stockholders' Equity (Deficit) and Employee Incentive Plans - Additional Information (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended			6 Months Ended			12 Months Ended
	Mar. 20, 2022 purchasePeriod	Jul. 31, 2021 participant $ / shares shares	Jul. 31, 2022 USD ($) vote $ / shares shares	Apr. 30, 2022	Jul. 31, 2021 USD ($) participant $ / shares shares	Jul. 31, 2022 USD ($) vote $ / shares shares	Sep. 21, 2021	Jul. 31, 2021 USD ($) participant $ / shares shares	Jan. 31, 2022 USD ($) $ / shares shares	Jan. 31, 2018 shares
Share Based Compensation Arrangement By Share Based Payment Award
Conversion of convertible securities (in shares)		26,710,600
Common stock, shares authorized (in shares)			1,000,000,000			1,000,000,000			1,000,000,000
Common stock, par value (in dollars per share) \| $ / shares			$ 0.00001			$ 0.00001			$ 0.00001
Number of vote \| vote			1			1
Dividend declared (in dollars per share) \| $ / shares						$ 0			$ 0
Number of shares reserved common stock for future issuance (in shares)			16,105,999			16,105,999
Initial offering period duration (in months)							24 months
Initial offering number of purchase periods \| purchasePeriod	4
Total stock-based compensation expense \| $			$ 6,727		$ 1,981	$ 12,177		$ 3,810
Stock-based compensation, net of amounts capitalized \| $						$ 12,177		3,810
Stock options outstanding
Share Based Compensation Arrangement By Share Based Payment Award
Number of shares reserved common stock for future issuance (in shares)			8,297,260			8,297,260
Total stock-based compensation expense \| $			$ 1,700			$ 3,400
Unrecognized stock-based compensation expense related to unvested stock options \| $			$ 12,900			$ 12,900			$ 17,700
Stock-based compensation expected to be recognized weighted-average period (in years)						2 years 1 month 6 days			2 years 6 months
Options granted (in shares)			0			0
Option granted Weighted-average grant-date fair value (in dollars per share) \| $ / shares			$ 11.31			$ 9.30
Aggregate intrinsic value of options exercised \| $			$ 1,000		$ 10,600	$ 7,700		$ 14,400
Issuance of common stock upon exercise of stock options (in shares)						544,257
Stock options outstanding \| Third Party
Share Based Compensation Arrangement By Share Based Payment Award
Options granted (in shares)										40,646
Issuance of common stock upon exercise of stock options (in shares)			16,674			40,646
Service-Based Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award
Total stock-based compensation expense \| $			$ 4,000			$ 6,400
Stock-based compensation expected to be recognized weighted-average period (in years)						3 years 7 months 6 days
Award requisite service period (in years)				4 years
Aggregate fair value of RSU granted \| $			14,600			$ 64,300
Unrecognized stock-based compensation expense related to service vesting-based RSUs \| $			62,900			$ 62,900
Market-Based Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award
Stock-based compensation expected to be recognized weighted-average period (in years)						3 years 1 month 6 days
Aggregate fair value of RSU granted \| $			100						$ 7,900
Unrecognized stock-based compensation expense related to service vesting-based RSUs \| $			6,800			$ 6,800
RSU granted (in shares)									1,214,000
Stock-based compensation, net of amounts capitalized \| $			$ 500			$ 1,100
2021 Plan
Share Based Compensation Arrangement By Share Based Payment Award
Share-based compensation granted expiration period (in years)						10 years
Share-based compensation vesting period (in years)						4 years
Share-based compensation available for grant (in shares)			2,200,000			2,200,000
Number of shares reserved common stock for future issuance (in shares)			4,120,000			4,120,000
Share-based compensation percentage of outstanding stock (as a percent)						5.00%
2021 Plan \| First Anniversary
Share Based Compensation Arrangement By Share Based Payment Award
Share-based compensation vesting rights (as a percent)						25.00%
ESPP
Share Based Compensation Arrangement By Share Based Payment Award
Employee maximum contribution (as a percent)		15.00%
Discount rate on market value of share (as a percent)		85.00%			85.00%			85.00%
Number of participant may purchase more than 1000 shares \| participant		0			0			0
Total stock-based compensation expense \| $			$ 500			$ 1,300
Employee contributions under the ESPP \| $			1,300			1,300
Unrecognized stock-based compensation expense related to unvested stock options \| $			1,300			$ 1,300
Stock-based compensation expected to be recognized weighted-average period (in years)						8 months 12 days
Share purchases related to ESPP (in shares)						237,499
IPO
Share Based Compensation Arrangement By Share Based Payment Award
Conversion of convertible securities (in shares)						26,710,600
Additional redeemable convertible preferred stock converted into shares of common stock (in shares)						640,387
Number of shares outstanding (in shares)						0
Number of common stock for sale and issuance (in shares)		9,589,999				0
Redeemable convertible preferred stock, shares authorized (in shares)		200,000,000			200,000,000			200,000,000
Redeemable convertible preferred stock , par value (in dollars per share) \| $ / shares		$ 0.00001			$ 0.00001			$ 0.00001
IPO \| Series E
Share Based Compensation Arrangement By Share Based Payment Award
Additional redeemable convertible preferred stock converted into shares of common stock (in shares)						162,032
Redeemable convertible preferred stock carrying amount \| $			$ 259,800			$ 259,800
IPO \| Series G
Share Based Compensation Arrangement By Share Based Payment Award
Additional redeemable convertible preferred stock converted into shares of common stock (in shares)						478,355