Segments - Additional Information (Detail) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2024
USD ($)
Segment
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
USD ($)
|
|
| Segment Reporting Information [Line Items] | |||
| Number of operating segment | 1 | ||
| Number of reporting segment | 1 | ||
| Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | srt:ChiefExecutiveOfficerMember | ||
| Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description | Significant expenses are presented on the Consolidated Statement of Income (Loss) and Comprehensive Income (Loss), which is regularly reviewed by the CODM. In addition, the CODM is regularly provided with total direct staff costs, which are a component of the significant expense categories and are disclosed in the consolidated statements of income (loss) and comprehensive income (loss), which was $148.1 million, $124.2 million, and $84.2 million for the year ended December 31, 2024, 2023, and 2022 respectively. For all periods presented, direct staff costs do not include staff costs which were allocated to the Company by the Parent. Direct staff costs include share-based compensation and employee benefits. There are no other significant expenses or asset information that are regularly provided to the CODM. | ||
| Direct staff costs | $ | $ 148.1 | $ 124.2 | $ 84.2 |