XML 29 R43.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Segment Reporting - Consolidated Net Revenues by Similar Products and Services (Detail) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net revenues | $ 131,849,139 | $ 112,183,360 | $ 247,231,460 | $ 214,909,107
Marketplace [Member] |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net revenues | 91,517,242 | 77,915,508 | 174,959,772 | 149,630,271
Non-marketplace [Member] |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net revenues | $ 40,331,897 | $ 34,267,852 | $ 72,271,688 | $ 65,278,836

X
- 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
Name: | us-gaap_SalesRevenueServicesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingRevenueReconcilingItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration