Intangible Assets, Net - Summary of Components of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 20,837	$ 18,004
Less: accumulated amortization	7,209	5,507
Intangible assets, net	13,628	12,497
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	11,210	8,902
In-Licensed Rights [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	8,073	8,073
Software Licenses [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 1,554	$ 1,029