XML 146 R123.htm IDEA: XBRL DOCUMENT v3.4.0.3
Restricted net assets (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Restricted net assets [Abstract]    
Percentage of after-tax income required to be transferred to statutory general reserve fund 10.00%  
Reserve level threshold for mandatory appropriation requirement (as a percent) 50.00%  
Restricted net assets ¥ 2,685,373 ¥ 343,090