Related Party Transactions (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 04, 2021	Jan. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2024
Related Party Transaction [Line Items]
Total revenue			$ 60,262	$ 44,747	$ 144,747	$ 155,610
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					21.90%		19.90%
Related Party | TWF Agreement
Related Party Transaction [Line Items]
Total revenue			100	$ 0	$ 600	$ 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	$ 1,600		$ 1,600		$ 1,000