Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Related Party Transactions (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended			6 Months Ended
	Feb. 04, 2021	Jan. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Related Party Transaction [Line Items]
Total revenue			$ 44,071		$ 49,999	$ 84,485	$ 110,863
Related Party \| The Anne Wojcicki Foundation \| Class A Common Stock
Related Party Transaction [Line Items]
Subscription shares issued (in shares)	125,000
Related Party \| Glaxo Smith Kline Plc Collaboration Agreement
Related Party Transaction [Line Items]
Voting interest percentage				19.90%		19.70%
Related Party \| TWF Agreement
Related Party Transaction [Line Items]
Total revenue			300		$ 0	$ 500	$ 0
Related Party \| TWF Agreement \| Troper Wojcicki Foundation
Related Party Transaction [Line Items]
TWF agreement, period		5 years
Deferred revenue for customer services		$ 5,400	$ 1,700			$ 1,700		$ 1,000