XML 189 R175.htm IDEA: XBRL DOCUMENT v3.19.1
Financial Risk Management Objectives and Policies - Foreign Currency Risk Sensitivity Analysis Assuming 10% Strengthening of Major Currencies against Functional Currency (Detail) - Foreign currency risk [Member]
¥ in Thousands, $ in Thousands
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
CNY (¥)
Singapore dollar [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Effect on profit before tax $ 3,195 ¥ 21,376 ¥ 41,585
Euro [Member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Effect on profit before tax 143 954 (937)
USD [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Effect on profit before tax (6,987) (46,741) 4,522
Renminbi [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Effect on profit before tax $ (142) ¥ (949) ¥ (3,504)