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Other Income and Expenses Recognized in Statement of Profit and Loss - Summary of Sales Related Shipping and Handling Expenses Not Separately Billed to Customers (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2017 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2015 CNY (¥)
Selling, general and administrative expenses [Member] |  |  |  |
Disclosure of income statement [Line Items] |  |  |  |
Selling, general and administrative expenses | ¥ 208,197 | $ 32,894 | ¥ 159,023 | ¥ 172,865

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- Definition Shipping and handling costs. + References No definition available. + Details
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- Details
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