Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Total	Class B Common Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2012	$ 726,968	$ 13	$ 130	$ 531,256	$ 196,438	$ (869)
Beginning balance, shares at Dec. 31, 2012		12,799,999	130,060,138
Net income attributable to TripAdvisor, Inc.	185,169				185,169
Currency translation adjustments	(393)					(393)
Unrealized loss on marketable securities, net of tax and reclassification adjustments	(46)					(46)
Issuance of common stock related to exercise of options and vesting of RSUs	24,423		1	24,422
Issuance of common stock related to exercise of options and vesting of RSUs, shares			1,312,745
Repurchase of common stock	(142,322)						(142,322)
Repurchase of common stock, shares							(2,083,709)
Tax benefits on equity awards	8,813			8,813
Minimum withholding taxes on net share settlements of equity awards	(9,878)			(9,878)
Stock-based compensation expense	36,072			36,072
Ending balance at Sep. 30, 2013	$ 828,806	$ 13	$ 131	$ 590,685	$ 381,607	$ (1,308)	$ (142,322)
Ending balance, shares at Sep. 30, 2013		12,799,999	131,372,883				(2,083,709)