Commitments and Contingencies - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013 sqft
Loss Contingencies [Line Items]
Aggregate future minimum lease payments, total	$ 170,597,000
Aggregate future minimum lease payments in 2015	5,774,000
Aggregate future minimum lease payments in 2016	10,598,000
Aggregate future minimum lease payments in 2017	10,598,000
Aggregate future minimum lease payments in 2018 and thereafter	130,008,000
Trip Advisor Llc [Member]
Loss Contingencies [Line Items]
Leased Area	280,000
Initial term of Lease	15 years 7 months
Initial base rent	33.00
Increase in base rent	34.50
Aggregate future minimum lease payments, total	143,500,000
Aggregate future minimum lease payments in 2015	1,100,000
Aggregate future minimum lease payments in 2016	9,300,000
Aggregate future minimum lease payments in 2017	9,300,000
Aggregate future minimum lease payments in 2018 and thereafter	123,900,000
Security Deposits	$ 800,000
Extended Lease Term	5 years
Maximum [Member]
Loss Contingencies [Line Items]
Criteria percentage of damages claims	10.00%