XML 153 R146.htm IDEA: XBRL DOCUMENT v3.8.0.1
Issued Capital and Preference Shares - Summary of Issued Capital and Preference Shares (Detail)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2017
CNY (¥)
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2016
CNY (¥)
shares
Dec. 31, 2017
USD ($)
shares
Ordinary shares issued and fully paid        
Beginning balance 40,712,100 40,712,100 39,298,340  
Shares issued during the year 99,790 99,790 1,413,760  
Issued of shares upon exercised of share options 46,400 46,400    
Ending balance 40,858,290 40,858,290 40,712,100  
Equity        
Beginning balance | ¥ ¥ 2,059,076   ¥ 1,955,720  
Issued of shares as dividend payment (Note 25) | ¥ 12,897   103,356  
Issued of shares upon exercised of share options (Note 27) | ¥ 9,165      
Ending balance ¥ 2,081,138 $ 328,805 ¥ 2,059,076  
One special share issued and fully paid at US$0.10 per share Less than RMB 1 thousand (US$1 thousand) Less than RMB 1 thousand (US$1 thousand) Less than RMB 1 thousand (US$1 thousand)  
Non-redeemable convertible cumulative preference shares ¥ 21   ¥ 21 $ 3
Ordinary shares [Member]        
Disclosure of classes of share capital [Line Items]        
Ordinary share of par value US$0.10 each 100,000,000   100,000,000 100,000,000