Significant Accounting Policies - Calculation of Net (Loss) Income and Number of Ordinary Shares and ADSs Used to Compute Basic and Diluted Net (Loss) Earnings per Ordinary Share and ADS (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Loss Earnings Per Share [Line Items]
Net (loss) income - basic		$ (14,139)	$ 1,522	$ (29,836)	$ (8,431)
Net (loss) income - diluted		$ (14,139)	$ 1,522	$ (29,836)	$ (8,431)
Weighted average shares outstanding - basic		414,477	410,851	414,008	410,565
Weighted average shares outstanding - diluted		414,477	411,395	414,008	410,565
(Loss) earnings per share - basic		$ (0.03)	$ 0	$ (0.07)	$ (0.02)
(Loss) earnings per share - diluted		$ (0.03)	$ 0	$ (0.07)	$ (0.02)
Ordinary Shares
Loss Earnings Per Share [Line Items]
Weighted average shares outstanding - basic		414,477	410,851	414,008	410,565
Weighted average shares outstanding - diluted		414,477	410,851	414,008	410,565
(Loss) earnings per share - basic	[1]	$ (0.03)	$ 0	$ (0.07)	$ (0.02)
(Loss) earnings per share - diluted	[1]	$ (0.03)	$ 0	$ (0.07)	$ (0.02)
American Depositary Shares
Loss Earnings Per Share [Line Items]
Weighted average shares outstanding - basic		20,723	20,542	20,700	20,528
Weighted average shares outstanding - diluted		20,723	20,542	20,700	20,528
(Loss) earnings per share - basic	[1]	$ (0.68)	$ 0.07	$ (1.44)	$ (0.41)
(Loss) earnings per share - diluted	[1]	$ (0.68)	$ 0.07	$ (1.44)	$ (0.41)
Restricted Stock Units
Loss Earnings Per Share [Line Items]
Effect of dilutive securities			545

[1] Excluding the licensing revenue change in estimates, discussed in Note 7 – Revenue Recognition, net earnings (loss) per ordinary share, basic and diluted, for the three and six months ended June 30, 2024 would have been net loss per share of $(0.01) and $(0.03), respectively and net earnings (loss) per ADS, basic and diluted for the three and six months ended June 30, 2024 would have been net loss per share of $(0.13) and $(0.61), respectively.