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Quarterly Financial Data Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2014 USD ($)
Orbitz |
Entity Information [Line Items] |
Impairment of goodwill and intangible assets | $ 0

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: | dei_EntityInformationLineItems
Namespace Prefix: | dei_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=expe_OrbitzMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |