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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OR LOSS (Parenthetical) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OR LOSS      
Other comprehensive income, tax ¥ 0 ¥ 0 ¥ 0