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		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Net income attributable to TripAdvisor	$ 55,882	$ 59,360	$ 185,169	$ 160,490
Denominator:
Weighted average shares used to compute Basic EPS	142,690	142,342	143,095	138,458
Weighted average effect of dilutive securities:
Stock options	2,435	1,223	1,925	1,249
RSUs	329	92	238	129
Stock warrants				681
Weighted average shares used to compute Diluted EPS	145,454	143,657	145,258	140,517
Basic EPS	$ 0.39	$ 0.42	$ 1.29	$ 1.16
Diluted EPS	$ 0.38	$ 0.41	$ 1.27	$ 1.14