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Income (Loss) Per Share - Summary of Basic and Diluted Net Income (Loss) per Ordinary Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net (loss) income	$ (7,382)	$ 4,190
Denominator:
Weighted average number of common shares - basic	76,022	52,933
Effect of dilutive securities- share-based employee options and awards		1,242
Weighted average number of common shares - diluted	76,022	54,175
Antidilutive options and awards	300	510
Net (loss) income per ordinary share:
Basic	$ (0.10)	$ 0.08
Diluted	$ (0.10)	$ 0.08

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