Commitments and Contingencies - Additional Information (Detail) |
9 Months Ended |
---|---|
Sep. 30, 2019
USD ($)
| |
Loss Contingencies [Line Items] | |
Indemnification liability recorded during the period | $ 0 |
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 |
Service Agreements | Ajinomoto Althea, Inc. | |
Loss Contingencies [Line Items] | |
Prepaid purchase obligations | $ 1,300,000 |