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Segment Information (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 CNY (¥) item | Dec. 31, 2016 USD ($) item | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥)
Segment and Geographic Information [Line Items] |  |  |  |
Number of segments | item | 2 | 2 |  |
Net Revenue | ¥ 3,390,275 | $ 488,302 | ¥ 2,598,443 | ¥ 1,584,420
Operating (loss) income | 90,066 | 12,972 | 8,451 | (56,856)
Other income (Expense) | 12,189 |  | 18,384 | (1,046)
Income (loss) before income tax and share of loss in equity method investment | 102,255 | $ 14,727 | 26,835 | (57,902)
Brand e-commerce [Member] |  |  |  |
Segment and Geographic Information [Line Items] |  |  |  |
Net Revenue | 3,365,572 |  | 2,528,969 | 1,555,404
Operating (loss) income | ¥ 143,815 |  | 63,734 | (39,762)
Inventory Write-down,Percentage | 29.00% | 29.00% |  |
Maikefeng [Member] |  |  |  |
Segment and Geographic Information [Line Items] |  |  |  |
Net Revenue | ¥ 24,703 |  | 69,474 | 29,016
Operating (loss) income | ¥ (53,749) |  | ¥ (55,283) | ¥ (17,094)
Inventory Write-down,Percentage | 71.00% | 71.00% |  |

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- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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