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Leases - Summary of Depreciation Charge of Right of Use Assets (Detail) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Quantitative Information About Depreciation Charge Of Right Of Use Assets [Line Items]      
Depreciation charge of right-of-use assets ¥ 578,014 ¥ 608,889 ¥ 604,018
Interest expense (included in finance costs) 41,402 38,709 46,567
Right-of-use assets [member]      
Disclosure Of Quantitative Information About Depreciation Charge Of Right Of Use Assets [Line Items]      
Depreciation charge of right-of-use assets 578,014 608,889 604,018
Interest expense (included in finance costs) 41,402 38,709 46,567
Expense relating to short-term leases (included in operation and servicing expenses; general and administrative expenses; technology and analytics expenses; and sales and marketing expenses) 37,376 55,408 115,741
Expense relating to leases of low-value assets (included in operation and servicing expenses; general and administrative expenses; technology and analytics expenses; and sales and marketing expenses) ¥ 25,548 ¥ 25,550 ¥ 26,684