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Related Party Transactions - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended 12 Months Ended
Feb. 28, 2021
Jul. 31, 2018
Dec. 31, 2021
Mar. 31, 2021
Feb. 04, 2021
Common Class A [Member] | V G Acquisition Sponsor L L C [Member]          
Related Party Transaction [Line Items]          
Common stock, Price Per Share         $ 10.00
Common Class A [Member] | The Anne Wojcicki Foundation [Member]          
Related Party Transaction [Line Items]          
Common stock shares subscribed     2,500,000    
GSK Collaboration Agreement [Member]          
Related Party Transaction [Line Items]          
Voting interest percentage     10.00% 10.00%  
GSK Collaboration Agreement [Member] | Series F1 Redeemable Convertible Preferred Stock [Member]          
Related Party Transaction [Line Items]          
Redeemable convertible preferred stock purchase   17,291,066      
Subscription Agreement [Member] | Common Class A [Member] | V G Acquisition Sponsor L L C [Member]          
Related Party Transaction [Line Items]          
Common stock shares subscribed         25,000,000
Common stock, Price Per Share         $ 10.00
Proceeds from PIPE $ 250.0