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Accumulated Other Comprehensive (Loss) Income (Tables) | 12 Months Ended
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Dec. 31, 2017
Equity [Abstract] |
Changes in Accumulated Other Comprehensive (Loss) Income by Component, Net of Tax of Nil | The changes in accumulated other comprehensive (loss) income by component, net of tax of nil, are as follows:
|  | Foreign currency translation |
|  | RMB |
Balance as of January 1, 2015 |  |  | (65,754 | )
Current year other comprehensive income |  |  | 41,518 |
Balance as of December 31, 2015 |  |  | (24,236 | )
Current year other comprehensive income |  |  | 142,526 |
Balance as of December 31, 2016 |  |  | 118,290 |
Current year other comprehensive loss |  |  | (120,963 | )
Balance as of December 31, 2017 |  |  | (2,673 | )
Balance as of December 31, 2017, in US$ |  |  | (411 | )

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e526-108580 + Details
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