XML 69 R41.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Stock Based Awards and Other Equity Instruments - Summary of Unrecognized Compensation Expense, Net of Estimated Forfeitures and the Weighted Average Period Remaining (Detail) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2013
Restricted Stock Units (RSUs) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized compensation expense (net of forfeitures), RSUs | $ 32,234
Weighted average period remaining (in years), RSUs | 3 years 6 months 4 days
Stock Options [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized compensation expense (net of forfeitures), Stock Options | $ 77,179
Weighted average period remaining (in years), Stock Options | 2 years 10 months 21 days

X
- Definition The weighted average remaining vesting period over which unamortized cost of stock options will be recognized to the profit and loss statement. + References No definition available. + Details
Name: | trip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityAwardOptionsOutstandingWeightedAverageRemainingVestPeriod
Namespace Prefix: | trip_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average remaining vesting period over which unamortized cost of RSU's will be recognized to the profit and loss statement. + References No definition available. + Details
Name: | trip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingVestPeriod
Namespace Prefix: | trip_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References No definition available. + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested options awarded to employees as compensation. + References No definition available. + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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