XML 157 R143.htm IDEA: XBRL DOCUMENT v3.19.1
Issued Capital and Preference Shares - Summary of Issued Capital and Preference Shares (Detail)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2018
CNY (¥)
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2017
CNY (¥)
shares
Disclosure of classes of share capital [line items]        
Ending balance $ 311,077 ¥ 2,081,138 $ 311,077 ¥ 2,081,138 [1]
Ordinary shares issued and fully paid        
Beginning balance 40,858,290 40,858,290 40,712,100 40,712,100
Shares issued during the year 0 0 99,790 99,790
Issued of shares upon exercised of share options (Note 25) 0 0 46,400 46,400
Ending balance 40,858,290 40,858,290 40,858,290 40,858,290
Equity        
Beginning balance $ 311,077 ¥ 2,081,138 [1]   ¥ 2,059,076
Issued of shares as dividend payment (Note 23) | ¥   0   12,897
Issued of shares upon exercised of share options (Note 25) | ¥   0   9,165
Ending balance $ 311,077 ¥ 2,081,138 $ 311,077 ¥ 2,081,138 [1]
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) Less than RMB 1 thousand(US$1 thousand)
Non-redeemable convertible cumulative preference shares | ¥       ¥ 21
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
[1] Restated