Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v2.4.1.9
Commitments and Contingencies (Details) (Trip Advisor, USD $)
In Millions, unless otherwise specified
12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jun. 20, 2013
Operating leases        
Capitalization of construction-in-process costs $ 62.0us-gaap_ConstructionInProgressExpendituresIncurredButNotYetPaid $ 8.0us-gaap_ConstructionInProgressExpendituresIncurredButNotYetPaid    
Rental expense 22us-gaap_OperatingLeasesRentExpenseNet 15us-gaap_OperatingLeasesRentExpenseNet 4us-gaap_OperatingLeasesRentExpenseNet  
Estimated future minimum rental payments        
2015 21us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent      
2016 26us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears      
2017 26us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears      
2018 26us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears      
2019 25us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears      
Thereafter 169us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter      
Total 293us-gaap_OperatingLeasesFutureMinimumPaymentsDue      
Newton, MA
       
Operating leases        
Leased area (in square feet) 119,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_LeaseArrangementTypeAxis
= ltrpa_NewtonMaMember
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember
     
Other leased locations
       
Operating leases        
Leased area (in square feet) 470,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_LeaseArrangementTypeAxis
= ltrpa_OtherLeasedLocationMember
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember
     
Number of locations 40ltrpa_NumberOfLocations
/ us-gaap_LeaseArrangementTypeAxis
= ltrpa_OtherLeasedLocationMember
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember
     
Needham, MA
       
Operating leases        
Estimated future annual lease payments       $ 9.5ltrpa_OperatingLeasesRentExpenseEstimatedFutureAnnual
/ us-gaap_LeaseArrangementTypeAxis
= ltrpa_NeedhamMaMember
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember