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Segment Reporitng (Consolidated Net Revenues by Similar Products and Services) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenues |  | $ 157,630 | $ 148,103
Marketplace [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenues |  | 94,098 | 94,762
Non-marketplace [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenues | [1] | $ 63,532 | $ 53,341
[1] | Includes, among other things, Ad Sales, Real Estate, Motors, Financing Fees, Off-platform Payment Fees, Shipping Fees and other ancillary services.

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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and 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(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- 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
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- Details
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