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Business Acquisition - Summary of Preliminary Estimate of Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Sep. 14, 2020
Business Acquisition [Line Items]    
Goodwill $ 44,466  
Anelixis [Member]    
Business Acquisition [Line Items]    
Cash and cash equivalents   $ 11,035
Prepaid expenses and other current assets   27
Other non-current assets   11
Accounts payable   (580)
Accrued expenses and other liabilities   (206)
Net identifiable assets acquired   10,287
Goodwill   44,466
Identifiable intangible assets   32,386
Net assets acquired   $ 87,139