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Trade and Other Payables - Summary of Other Non-current Payables (Detail)
¥ in Thousands, $ in Thousands
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
CNY (¥)
Jan. 01, 2017
CNY (¥)
[1]
Trade and other non-current payables [abstract]        
Provision for bonus $ 23,930 ¥ 160,091 ¥ 148,287  
Deferred income     8,060  
Other payables (non-current) (Note 32, Note 35) $ 23,930 ¥ 160,091 ¥ 156,347 [1] ¥ 136,772
[1] Restated