XML 67 R49.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Summary of Significant Principal Accounting Policies (Schedule of Concentration and Risks) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥) | Dec. 31, 2016 USD ($)
Concentration Risk [Line Items] |  |  |  |  |  |  |
Accounts receivable, net | ¥ 624,817 |  |  | ¥ 364,782 |  |  | $ 89,993
Cost of products | 1,921,856 |  | $ 276,805 | 1,735,820 |  | ¥ 1,086,133 |
Accounts Receivable [Member] | Customer [Member] | Customer A [Member] |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |
Accounts receivable, net | 193,775 |  |  | 77,764 |  |  |
Cost of Products [Member] | Supplier [Member] | B [Member] |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |
Cost of products | 629,780 |  |  | 257,069 |  |  |
Cost of Products [Member] | Supplier [Member] | C [Member] |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |
Cost of products | 551,459 |  |  | 317,576 |  |  |
Cost of Products [Member] | Supplier [Member] | D [Member] |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |
Cost of products |  | [1] |  | 245,427 |  |  |
Sales Revenue, Net [Member] | Customer [Member] | Customer A [Member] |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |
Accounts receivable, net | ¥ 351,204 |  |  |  | [1] |  |
[1] | Not more than 10% or more.

X
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References 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(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccountsReceivableNetCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ConcentrationRiskLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total costs related to goods produced and sold during the reporting period. + 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 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_CostOfGoodsSold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=bzun_CustomerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_CostOfGoodsTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_SupplierConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bzun_SupplierAxis=bzun_SupplierOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bzun_SupplierAxis=bzun_SupplierTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bzun_SupplierAxis=bzun_SupplierThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |