The rate of expected credit losses, calculated as percentage of the gross carrying amount. Expected credit losses are the weighted average of credit losses with the respective risks of a default occurring as the weights.

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The value of significant unobservable input used in the measurement of the fair value of assets.

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Cumulative expected credit loss estimated decrease in impairment provision.

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Cumulative expected credit loss estimated increase in impairment provision .

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Disclosure of macroeconomic assumptions for calculating expected credit losses [Line items].

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Financial Instruments And Risks - Additional Information (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2020 CNY (¥)
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Expected credit loss rate	7.12%	12.15%
Bottom of range [member] \| Discount rate, measurement input [member] \| Unlisted Securities at Fair Value Through Profit or Loss [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Significant unobservable input, assets	6.8	6.8	6.8
Top of range [member] \| Discount rate, measurement input [member] \| Unlisted Securities at Fair Value Through Profit or Loss [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Significant unobservable input, assets	9.5	9.5	9.5
Wealth Management Products Investments [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Transfers into Level 3 of fair value hierarchy, assets	¥ 1,035.6
Increase In Upside Scenario [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Expected credit loss rate			10.00%
Cumulative expected credit loss estimated decrease in impairment provision	¥ 15.0	¥ 62.0	¥ 5.0
Reduction In Downside Scenario [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Expected credit loss rate	10.00%
Reduction In Base Case Scenario [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Expected credit loss rate	10.00%
Cumulative expected credit loss estimated increase in impairment provision	¥ 32.0
Increase In Downside Scenario [Member]
Disclosure Of Macroeconomic Assumptions For Calculating Expected Credit Losses [Line Items]
Expected credit loss rate			10.00%
Cumulative expected credit loss estimated increase in impairment provision		¥ 123.0	¥ 6.0