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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Equity Incentive Plans and Stock-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 10, 2021 shares	Nov. 30, 2021 USD ($) shares	Sep. 30, 2022 USD ($) shares	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021 USD ($)	Jun. 15, 2022 shares	Mar. 31, 2022 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance \| shares			151,345,269		151,345,269			144,601,515
Granted \| shares					3,670,200
Shares Available for Grant, Exercised \| shares					2,496,363
Weighted-average grant date fair values of options granted \| $ / shares					$ 2.54
Intrinsic value of vested options exercised					$ 4,100
Unrecognized stock-based compensation cost			$ 83,700		$ 83,700
Weighted average period over which unrecognized compensation is expected to be recognized					2 years 8 months 12 days
Proceeds from exercise of stock options					$ 3,944	$ 5,624
Lemonaid Health, Inc. [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		4 years
Unrecognized stock-based compensation cost			33,900		33,900
Weighted average period over which unrecognized compensation is expected to be recognized		3 years 1 month 6 days
Common stock granted subject to vest \| shares		3,747,027
Common stock granted subject to vest, Weighted average grant date fair value		$ 43,900
Secondary Sale Transaction [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			28,967	$ 10,427	59,430	20,064
General and Administrative Expense [Member] \| Lemonaid Health, Inc. [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			2,800		5,500
General and Administrative Expense [Member] \| Secondary Sale Transaction [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			12,548	$ 3,172	24,719	5,501
Stock Option Activity [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Tax benefit recognized from stock option exercises					0	$ 0
Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock-based compensation cost			$ 126,700		$ 126,700
Weighted average period over which unrecognized compensation is expected to be recognized					3 years 2 months 12 days
2021 Incentive Equity Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exchange ratio of common stock					2.293698169
Shares Available for Grant, Beginning balance \| shares			22,839,019		22,839,019
Common stock issued and outstanding, percentage					3.00%
Exercise price of stock options as a percentage of fair value of shares					110.00%
Share-based payment award, description					The number of shares of Class A common stock reserved for issuance under the 2021 Plan will automatically increase on January 1 of each calendar year, starting in 2022, in an amount equal to (i) 22,839,019 shares of Class A common stock, (ii) 3.0% of the aggregate number of shares of Class A common stock and Class B common stock outstanding, or (iii) a lesser number of shares determined by the Company’s Board of Directors prior to the applicable January 1 (the “Evergreen Provision”).
Share-based payment award, expiration period					10 years
Share-based compensation terms of award					Options under the 2021 Plan have a contractual life of up to ten years. The exercise price of a stock option shall not be less than 100% of the estimated fair value of the shares on the date of grant, as determined by the Board of Directors.
2021 Incentive Equity Plan [Member] \| Stock Option Activity [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of total stock holding			10.00%		10.00%
2021 Incentive Equity Plan [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price of stock options as a percentage of fair value of shares					100.00%
ESPP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock issued and outstanding, percentage	(1.00%)
Potential annual increase in shares reserved for future issuance \| shares	5,000,000
2022 AIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			$ 4,800		$ 9,700
Other current liabilities			$ 9,700		$ 9,700
Class A Common Stock [Member] \| 2021 Incentive Equity Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance \| shares	136,000,000						13,384,415
Class A Common Stock [Member] \| 2021 Incentive Equity Plan [Member] \| Lemonaid Health, Inc. [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance \| shares		2,990,386
Class A Common Stock [Member] \| ESPP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for future issuance \| shares	11,420,000		10,289,663		10,289,663
Number of shares issued \| shares					1,130,337