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Share-based Payment Arrangements - Summary of Fair Value using Trinomial Tree Model and Inputs (Detail) | 12 Months Ended
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Dec. 31, 2024 Years $ / shares | Dec. 31, 2023 Years $ / shares
USISH Two Thousand And Twenty Three Share Options Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Share price at the grant date |  | $ 15.16
Exercise price |  | 14.54
Trinomial Tree Model [member] | The Company Two Thousand And Twenty Three Share Options Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Share price at the grant date | $ 108 |
Exercise price | 107 |
Binomial Method [Member] | Usish Employee Stock Ownership Plan Restricted Shares Two Thousand And Twenty Four [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Share price at the grant date |  | 14.19
Exercise price | 14.35 |
Binomial Method [Member] | Usish Employee Stock Ownership Plan Restricted Shares Two Thousand And Twenty Three [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Share price at the grant date |  | $ 15.02
Exercise price | $ 14.54 |
Bottom of range [member] | USISH Two Thousand And Twenty Three Share Options Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility |  | 38.51%
Expected lives | Years |  | 2
Risk free interest rate |  | 2.35%
Bottom of range [member] | Trinomial Tree Model [member] | The Company Two Thousand And Twenty Three Share Options Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility | 31.02% |
Expected lives | Years | 3.9 |
Risk free interest rate | 1.06% |
Bottom of range [member] | Binomial Method [Member] | Usish Employee Stock Ownership Plan Restricted Shares Two Thousand And Twenty Four [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility | 35.02% |
Lock-up periods | Years | 1 |
Risk free interest rate | 2.11% |
Bottom of range [member] | Binomial Method [Member] | Usish Employee Stock Ownership Plan Restricted Shares Two Thousand And Twenty Three [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility |  | 36.56%
Lock-up periods | Years |  | 1
Risk free interest rate |  | 2.33%
Top of range [member] | USISH Two Thousand And Twenty Three Share Options Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility |  | 39.09%
Expected lives |  | 3
Risk free interest rate |  | 2.45%
Top of range [member] | Trinomial Tree Model [member] | The Company Two Thousand And Twenty Three Share Options Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility | 33.03% |
Expected lives | Years | 6.1 |
Risk free interest rate | 1.12% |
Top of range [member] | Binomial Method [Member] | Usish Employee Stock Ownership Plan Restricted Shares Two Thousand And Twenty Four [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility | 37.02% |
Lock-up periods | Years | 2 |
Risk free interest rate | 2.27% |
Top of range [member] | Binomial Method [Member] | Usish Employee Stock Ownership Plan Restricted Shares Two Thousand And Twenty Three [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Expected volatility |  | 38.77%
Lock-up periods | Years |  | 2
Risk free interest rate |  | 2.44%

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- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2024-03-27 + Details
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