Significant Accounting Policies - 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								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator:
Net income attributable to TripAdvisor, Inc.	$ 20,274	$ 55,882	$ 66,988	$ 62,299	$ 33,579	$ 59,360	$ 53,019	$ 48,111	$ 205,443	$ 194,069	$ 177,677
Denominator:
Weighted average shares used to compute Basic EPS									142,854	139,462	133,461
Effect of dilutive securities:
Stock options									2,131	1,207	1,164
RSUs									278	161	240
Stock warrants										511
Weighted average shares used to compute Diluted EPS									145,263	141,341	134,865
Basic EPS	$ 0.14	$ 0.39	$ 0.47	$ 0.44	$ 0.24	$ 0.42	$ 0.38	$ 0.36	$ 1.44	$ 1.39	$ 1.33
Diluted EPS	$ 0.14	$ 0.38	$ 0.46	$ 0.43	$ 0.23	$ 0.41	$ 0.37	$ 0.35	$ 1.41	$ 1.37	$ 1.32