XML 89 R70.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accounts Receivable, Net - Additional Information (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2017
CNY (¥)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
CNY (¥)
Dec. 31, 2015
CNY (¥)
Provision for doubtful accounts ¥ 11,688 $ 1,796 ¥ 42,533 ¥ 13,641