XML 95 R77.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Convertible Redeemable Preferred Shares (Rollforward of Carrying Amounts of Series A, Series B, Series C1, Series C2 and Series D shares) (Details) ¥ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2014 CNY (¥) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥)
Temporary Equity [Line Items] |  |  |  |  |
Change in redemption value of preferred shares |  |  |  | ¥ (25,332) | ¥ (79,169)
Deemed dividend from issuance of preferred share series C2 (Note 17) |  |  |  |  | 16,666
Series A Preferred Stock [Member] |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |
Beginning balance |  |  |  | 55,924 | 49,710
Change in redemption value of preferred shares |  |  |  | 1,648 | 6,214
Issuance of preferred shares |  |  |  |  |
Conversion of preferred shares into class A ordinary shares |  |  |  | (57,572) |
Ending balance |  |  |  |  | 55,924
Series B Preferred Stock [Member] |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |
Beginning balance |  |  |  | 202,125 | 180,182
Change in redemption value of preferred shares |  |  |  | 5,957 | 21,943
Issuance of preferred shares |  |  |  |  |
Conversion of preferred shares into class A ordinary shares |  |  |  | (208,082) |
Ending balance |  |  |  |  | 202,125
Series C1 Preferred Stock [Member] |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |
Beginning balance |  |  |  | 355,176 | 308,848
Change in redemption value of preferred shares |  |  |  | 12,453 | 46,328
Issuance of preferred shares |  |  |  |  |
Conversion of preferred shares into class A ordinary shares |  |  |  | (367,629) |
Ending balance |  |  |  |  | 355,176
Series C2 Preferred Stock [Member] |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |
Beginning balance |  |  |  | 37,630 |
Change in redemption value of preferred shares |  |  |  |  |
Issuance of preferred shares |  |  |  |  | 20,964
Deemed dividend from issuance of preferred share series C2 (Note 17) | ¥ 16,666 |  |  |  | 16,666
Conversion of preferred shares into class A ordinary shares |  |  |  | (37,630) |
Ending balance |  |  |  |  | 37,630
Series D Preferred Stock [Member] |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |
Beginning balance |  |  |  | 150,430 |
Change in redemption value of preferred shares |  |  |  | 5,274 | 4,684
Issuance of preferred shares |  |  |  |  | 145,746
Conversion of preferred shares into class A ordinary shares |  |  |  | (155,704) |
Ending balance |  |  |  |  | ¥ 150,430

X
- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendsIncomeStatementImpact
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net amount of stock issued during the period upon the conversion of convertible securities, net of adjustments (for example, to additional paid in capital) including the write-off of an equity component recognized to record the convertible debt instrument as two separate components - a debt component and an equity component. This item is meant to disclose the value of shares issued on conversion of convertible securities that were recorded as two separate (debt and equity) components. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders. + References No definition available. + Details
Name: | us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References No definition available. + Details
Name: | us-gaap_TemporaryEquityCarryingAmountAttributableToParent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_TemporaryEquityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of new stock classified as temporary equity issued during the period. + References No definition available. + Details
Name: | us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=bzun_SeriesC1PreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=bzun_SeriesC2PreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesDPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |