Name:	ostk_DefinedContributionPlanEmployerMatchUpToSpecifiedEmployeeContribution
Namespace Prefix:	ostk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The minimum period that the individual is required to perform services in order to be fully vested under the 401(k) defined contribution plan.

No definition available.

Name:	ostk_DefinedContributionPlanMinimumRequisiteServicePeriod
Namespace Prefix:	ostk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

This element represents the minimum age limit for participating in 401(k) defined contribution plan.

No definition available.

Name:	ostk_DefinedContributionPlanParticipantMinimumAge
Namespace Prefix:	ostk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

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

Amount of cost for defined contribution plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.