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Organization and Principal Activities (Narrative) (Details) - $ / shares | 12 Months Ended | 34 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2012 | Jul. 31, 2014 | Dec. 31, 2013
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Ordinary shares subscribed |  |  |  |  |  | 29,983,883
Par value of ordinary shares (in dollars per share) |  | $ 0.0001 |  |  |  | $ 0.0001
Equity interest acquired (as a percent) |  | 100.00% |  |  |  |
Shanghai Zunyi Business Consulting Ltd. [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Written notice period required to cancel proxy agreement by VIE | 30 days |  |  |  |  |
Term of exclusive technology service agreement with VIE | 20 years |  |  |  |  |
VIE [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Contribution percentage in consolidated net revenues | 2.99% | 3.58% | 1.33% |  |  |
Contribution percentage in consolidated total assets | 2.69% | 4.32% |  |  |  |
Variable Interest Entities Contribution Percentage Liabilities | 4.45% | 7.16% |  |  |  |
Shanghai Baozun [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Equity interest acquired (as a percent) |  |  |  |  | 100.00% |
Shanghai Baozun [Member] | Alibaba [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 25.16% |  |
Shanghai Baozun [Member] | Private Opportunities [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 5.81% |  |
Shanghai Baozun [Member] | GS Investment [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 3.88% |  |
Shanghai Baozun [Member] | Stelca Holding [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 1.53% |  |
Shanghai Baozun [Member] | New Access [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 3.86% |  |
Shanghai Baozun [Member] | Crescent Castle [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 24.80% |  |
Shanghai Baozun [Member] | Infinity [Member] |  |  |  |  |  |
Organization and Principal Activities [Line Items] |  |  |  |  |  |
Percentage of equity interest acquired by investors |  |  |  | 6.46% |  |

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