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Commitments and Contingencies - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended
Jan. 31, 2020
Mar. 31, 2020
Loss Contingencies [Line Items]    
Indemnification liability recorded during the period   $ 0
Teoxane Agreement    
Loss Contingencies [Line Items]    
Collaborative agreement, contractual period 10 years 10 years
Collaborative agreement, extended contractual period 2 years 2 years
Fair value of assets acquired $ 43,500,000  
List Laboratories | Product Approval Payment Derivative    
Loss Contingencies [Line Items]    
Accrued milestone obligations   $ 2,000,000.0
Botulinum Toxin Research Associates, Inc.    
Loss Contingencies [Line Items]    
Accrued milestone obligations   16,000,000.0
BioSentinel, Inc.    
Loss Contingencies [Line Items]    
Accrued milestone obligations   300,000
Other Current Liabilities    
Loss Contingencies [Line Items]    
Fair value of assets acquired   $ 1,000,000.0