Share-Based Compensation - Summary of Fair Value of MRI EICP Options and Valuation Assumptions (Detail)	12 Months Ended
Dec. 31, 2025 $ / shares shares
MRI EICP [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected option life	5 years 6 months
MRI EICP [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected option life	3 years 6 months
MRI EICP April 2023 Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options awarded \| shares	2,100,000
Grant-date fair value \| $ / shares	$ 4.25
MRI EICP April 2023 Awards [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk-free interest rate	3.97%
Expected volatility, maximum	80.00%
MRI EICP April 2023 Awards [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk-free interest rate	3.71%
Expected volatility, minimum	78.00%
MRI EICP January 2023 Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options awarded \| shares	950,214
Risk-free interest rate	0.50%
Expected volatility	32.00%
Expected option life	5 years 6 months
Grant-date fair value \| $ / shares	$ 3.44

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gross number of share options (or share units) granted during the period.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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