Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Intangible asset, Gross amount	$ 7,598	$ 7,599
Accumulated amortization	(7,098)	(7,092)
Intangible asset, Net amount	500	507
Intellectual Property Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, Gross amount	7,598	7,599
Accumulated amortization	(7,098)	(7,092)
Intangible asset, Net amount	$ 500	$ 507