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Loss Per Share (Schedule of Computation of Basic and Diluted Net Loss Per Share) (Details) ¥ / shares in Units, $ / shares in Units, ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2015 CNY (¥) ¥ / shares shares	Dec. 31, 2014 CNY (¥) ¥ / shares shares	Dec. 31, 2013 CNY (¥) ¥ / shares shares
Numerator:
Net loss	$ (225,289)	¥ (1,459,379)	¥ (447,858)	¥ (79,632)
Deemed dividends upon redesignation			(15,606)	(59,428)
Net loss attributable to ordinary shareholders	$ (225,289)	¥ (1,459,379)	¥ (463,464)	¥ (139,060)
Denominator:
Weighted average number of ordinary shares outstanding - basic and diluted (in shares) | shares	248,362,837	248,362,837	105,746,313	26,000,000
Basic and diluted net loss per share attributable to the Company's ordinary shareholders (in dollars per share) | (per share)	$ (0.91)	¥ (5.88)	¥ (4.38)	¥ (5.35)
Preferred A Shares [Member]
Numerator:
Deemed dividends upon redesignation				¥ (59,428)
Preferred D Shares [Member]
Numerator:
Deemed dividends upon redesignation			¥ (15,606)
Parent Company [Member]
Numerator:
Net loss	$ (225,289)	¥ (1,459,379)	(447,858)	¥ (79,632)
Deemed dividends upon redesignation			(15,606)	(59,428)
Net loss attributable to ordinary shareholders	$ (225,289)	¥ (1,459,379)	¥ (463,464)	¥ (139,060)

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=51831255

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

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-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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