XML 95 R67.htm IDEA: XBRL DOCUMENT v3.3.1.900
Concentration and risks (Details) - CNY (¥)
¥ in Thousands
36 Months Ended
Jun. 30, 2008
Dec. 31, 2015
Dec. 31, 2014
Minimum      
Concentration and risks      
Foreign currency exchange appreciation rate 20.00%    
Currency convertibility risk      
Concentration and risks      
Cash and cash equivalents, restricted cash and short-term investments   ¥ 12,630,577 ¥ 9,054,762