Fair Value Measurements - Schedule of Contingent Consideration Earnout Expect to be Required to Settle Include Significant Unobservable Inputs (Detail) - Contingent Consideration - USD ($) $ in Thousands		Sep. 30, 2021	Sep. 20, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value		$ 79,962		$ 0
Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Probability of success			100.00%
R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value		28,553
R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring | Probability of Success
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		100.00%
R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring | Earnout Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		2.00%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value		$ 51,409
Volatility			32.80%
Revenue and volume discount rate			9.40%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring | Earnout Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		2.00%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring | Volatility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		32.80%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring | Revenue & Volume Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		9.40%
Minimum | R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			1.40%
Minimum | Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			1.40%
Maximum | R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			2.60%
Maximum | Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			2.60%

[1] Unobservable inputs were weighted by the relative fair value of the contingent consideration liability.