Intangible Assets, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 37,864	$ 13,981
Amortization of in-licensed rights	$ 1,559	714	$ 706
Remaining Amortization Period	13 years 9 months 18 days
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 4,889	5,106
Software Development [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	302	302
License Agreement [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, gross	24,100
Amortization of in-licensed rights	1,900	$ 1,900	$ 1,400
ELEVIDYS [Member] | Nationwide License Agreement [Member]
Finite Lived Intangible Assets [Line Items]
Carrying value	$ 22,200