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Intangible Assets - Summary of Intangible Assets (Detail) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items]      
Beginning balance ¥ 1,882,462 ¥ 1,896,575 ¥ 1,973,368
Additions 3,126 17,718 19,383
Impairment (963,948) (64,209) (64,209)
Amortization charge (22,234) (31,831) (31,967)
Ending balance 899,406 1,882,462 1,896,575
Cost [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance 2,070,639 2,449,433 2,430,050
Impairment (1,028,157)    
Ending balance 2,073,765 2,070,639 2,449,433
Accumulated amortization [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance (123,968) (488,649) (456,682)
Impairment (64,209) (64,209)  
Ending balance (146,202) (123,968) (488,649)
Trademarks and licenses [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance 1,810,576 1,810,576 1,811,338
Impairment (963,948)    
Amortization charge     (762)
Ending balance 846,628 1,810,576 1,810,576
Trademarks and licenses [member] | Cost [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance 1,815,576 1,815,576 1,815,576
Impairment (963,948)    
Ending balance 1,815,576 1,815,576 1,815,576
Trademarks and licenses [member] | Accumulated amortization [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance (5,000) (5,000) (4,238)
Ending balance (5,000) (5,000) (5,000)
Computer software [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance 71,886 85,999 107,612
Additions 3,126 17,718 19,383
Transfer     54,418
Impairment   (64,209) (64,209)
Amortization charge (22,234) (31,831) (31,205)
Ending balance 52,778 71,886 85,999
Computer software [member] | Cost [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance 255,063 633,857 560,056
Impairment (64,209)    
Ending balance 258,189 255,063 633,857
Computer software [member] | Accumulated amortization [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance (118,968) (483,649) (452,444)
Impairment (64,209) (64,209)  
Ending balance ¥ (141,202) ¥ (118,968) (483,649)
Development in progress [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance     54,418
Transfer     (54,418)
Development in progress [member] | Cost [member]      
Disclosure of detailed information about intangible assets [line items]      
Beginning balance     ¥ 54,418