XML 90 R49.htm IDEA: XBRL DOCUMENT v2.4.0.6

BUSINESS AND ORGANIZATION (Details)	12 Months Ended
BUSINESS AND ORGANIZATION (Details)	Dec. 31, 2012 item
BUSINESS AND ORGANIZATION
Number of websites	3

Represents the number of internet websites of the entity.

No definition available.

Name:	ostk_NumberOfWebsites
Namespace Prefix:	ostk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration