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Indefinite-Lived Intangible Assets (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)
Indefinite-lived intangible assets, gross	$ 2,090	¥ 14,513	¥ 13,566
Domain names
Indefinite-lived intangible assets, gross	1,348	9,360	9,360
Trademarks
Indefinite-lived intangible assets, gross	$ 742	¥ 5,153	¥ 4,206

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- Definition

Gross carrying amounts as of the balance sheet date of intangible assets, excluding goodwill, having a projected indefinite period of benefit.

+ References

No definition available.

+ Details

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Period Type:	instant

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

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- Details

Name:	us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: