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Other Income and Expenses Recognized in Statement of Profit and Loss - Summary of Finance Costs (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2017
CNY (¥)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
CNY (¥)
Dec. 31, 2015
CNY (¥)
Profit or loss [Abstract]        
Bank term loans ¥ 53,888 $ 8,514 ¥ 34,477 ¥ 57,212
Corporate bonds     27,581 54,116
Bills discounting 42,179 6,664 13,068 1,651
Bank charges 4,367 690 4,552 3,364
Finance lease 5 1 5 8
Finance costs ¥ 100,439 $ 15,869 ¥ 79,683 ¥ 116,351