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Staff Costs - Schedule of Compensation Related Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Compensation Related Costs [Abstract]
Salaries, bonuses and staff welfare	$ 18,493	$ 15,490	$ 12,192
Pension scheme contributions (defined contribution schemes)	1,590	1,014	104
Employee benefits and share-based compensation	$ 20,083	$ 16,504	$ 12,296

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- Definition

Salaries, bonuses and staff welfare.

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount of expense for employee benefit and equity-based compensation.

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No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

Amount of cost (reversal of cost) for pension and other postretirement benefits.

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No definition available.

+ Details

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