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Related-Party Transactions - Additional Information (Detail) - Ginkgo Bioworks, Inc. - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2019
Related Party Transaction [Line Items]    
Prepayment to related party for collaboration agreement $ 30.0  
Related party transaction collaboration agreement, initial term 5 years  
Current Pre-Paid Research and Development   $ 11.5
Non Current Pre-Paid Research and Development   15.7
Prepaid research and development expenses   $ 2.8