Consolidated Balance Sheets (Parenthetical) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014 USD ($)	Dec. 31, 2014 CNY	Dec. 31, 2013 CNY
Current liabilities of consolidated VIEs without recourse to the Company	$ 93,767	581,781	381,897
Non-current liabilities of consolidated VIEs without recourse to the Company	$ 2,929	18,179	12,231
Treasury stock, shares	2,039,656us-gaap_TreasuryStockShares	2,039,656us-gaap_TreasuryStockShares	0us-gaap_TreasuryStockShares

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28,29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

Name:	us-gaap_TreasuryStockShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant