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Share-based Payments - Summary of assumptions used to estimate the fair value of the share options (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 08, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free rate, Minimum	1.13%	0.66%	1.58%
Risk-free rate, Maximum	1.62%	1.84%	1.80%
Expected volatility range, Minimum	36.28%	37.30%	37.40%
Expected volatility range, Maximum	38.03%	37.80%	37.90%
Exercise multiple, Minimum	2.20	2.20	2.20
Exercise multiple, Maximum	2.80	2.80	2.80
Share Price				$ 0.76
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Price	$ 1.97	$ 0.76	$ 0.72
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Price	$ 3.49	$ 1.94	$ 0.76

X

- Definition

Share based compensation by share based payment arrangement fair value assumptions exercise multiple maximum.

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- Definition

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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No definition available.

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- Definition

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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- Definition

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

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No definition available.

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- Definition

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

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- Definition

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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- Definition

Price of a single share of a number of saleable stocks of a company.

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