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Carrying Value of Land Use Rights Pledged by Company to Secure Banking Borrowings (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2017 USD ($)	Dec. 31, 2017 CNY (¥)	Dec. 31, 2016 CNY (¥)
Goodwill and Intangible Assets Disclosure [Abstract]
Land use rights	$ 2,585	¥ 16,818	¥ 17,232

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- Definition

Carrying Value Of Land Use Rights

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