No definition available.

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Period Type:	duration

The Company currently donates to it's charity 2% of it's OIBA.

No definition available.

Name:	trip_PercentOfOIBAForCharitableFoundation
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Data Type:	num:percentItemType
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Period Type:	duration

Estimated future payment of unrecognized tax benefits including accrued interest due within twelve months.

No definition available.

Name:	trip_UnrecognizedTaxBenefitsIncludingAccruedInterestDueWithinTwelveMonths
Namespace Prefix:	trip_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Unrecognized tax benefits including income tax penalties and interest accrued.

No definition available.

Name:	trip_UnrecognizedTaxBenefitsIncludingIncomeTaxPenaltiesAndInterestAccrued
Namespace Prefix:	trip_
Data Type:	xbrli:monetaryItemType
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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 4

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765