Earnings Per Share - Reconciliation of Weighted Average Number of Shares of Common Stock Outstanding (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Numerator:
Net income attributable to TripAdvisor	$ 66,988	$ 53,019	$ 129,287	$ 101,130
Denominator:
Weighted average shares used to compute Basic EPS	143,531	139,278	143,297	136,516
Weighted average effect of dilutive securities:
Stock options	1,940	1,394	1,671	1,263
RSUs	193	100	192	147
Stock warrants		965		1,021
Weighted average shares used to compute Diluted EPS	145,664	141,737	145,160	138,947
Basic EPS	$ 0.47	$ 0.38	$ 0.90	$ 0.74
Diluted EPS	$ 0.46	$ 0.37	$ 0.89	$ 0.73