Balance Sheet Components - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2022	Dec. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Property Plant And Equipment [Line Items]
Depreciation				$ 11,000,000	$ 14,800,000	$ 16,100,000
Property and equipment cost	$ 110,082,000			110,082,000	113,924,000
Impairment to property plant and equipment				0		0
Amortization and impairment of internal-use software				6,255,000	4,427,000	2,449,000
Amortization of intangible assets				12,300,000	17,300,000	7,600,000
Impairment of intangible assets				0		0
Goodwill impairment	152,900,000		$ 198,800,000	351,744,000	0	0
Goodwill	0			0	351,744,000
Lemonaid Health Limited
Property Plant And Equipment [Line Items]
Internal use software write-off				1,100,000
Internal Use Software
Property Plant And Equipment [Line Items]
Capitalized computer software				12,100,000	10,800,000	5,700,000
Internal Use Software Including Stock Based Compensation
Property Plant And Equipment [Line Items]
Capitalized computer software				3,600,000	3,200,000	1,200,000
Amortization and impairment of internal-use software				6,300,000	$ 4,800,000	$ 2,900,000
Partnerships
Property Plant And Equipment [Line Items]
Impairment charge for U.K partnership asset		$ 10,000,000
Property And Equipment-Write-Off
Property Plant And Equipment [Line Items]
Property and equipment cost	$ 4,600,000			$ 4,600,000