Consolidated Statements of Operations (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
Revenue	$ 198,969		$ 155,835		$ 560,992		$ 429,370
Related-party revenue from Expedia	56,167		56,875		171,000		164,203
Total revenue	255,136		212,710		731,992		593,573
Costs and expenses:
Cost of revenue (exclusive of amortization)	5,207	[1]	2,876	[1]	13,135	[1]	8,536	[1]
Selling and marketing	98,204	[2]	67,647	[2]	260,069	[2]	199,279	[2]
Technology and content	34,398	[2]	23,535	[2]	95,116	[2]	62,950	[2]
General and administrative	24,556	[2]	20,056	[2]	72,541	[2]	54,562	[2]
Depreciation	7,634		5,037		20,834		14,033
Amortization of intangible assets	1,443		1,310		4,182		4,909
Total costs and expenses	171,442		120,461		465,877		344,269
Operating income	83,694		92,249		266,115		249,304
Other income (expense):
Interest income	475		76		1,316		260
Interest expense	(2,562)		(2,882)		(7,875)		(8,403)
Other, net	2,016		1,367		(1,595)		(2,476)
Total other expense, net	(71)		(1,439)		(8,154)		(10,619)
Income before income taxes	83,623		90,810		257,961		238,685
Provision for income taxes	(27,741)		(31,275)		(72,792)		(77,814)
Net income	55,882		59,535		185,169		160,871
Net (income) loss attributable to noncontrolling interests			(175)				(381)
Net income attributable to TripAdvisor, Inc.	55,882		59,360		185,169		160,490
Earnings Per Share attributable to TripAdvisor, Inc.:
Basic	$ 0.39		$ 0.42		$ 1.29		$ 1.16
Diluted	$ 0.38		$ 0.41		$ 1.27		$ 1.14
Weighted Average Common Shares Outstanding:
Basic	142,690		142,342		143,095		138,458
Diluted	145,454		143,657		145,258		140,517
(1) Excludes amortization as follows:
Depreciation	7,634		5,037		20,834		14,033
Amortization of intangible assets	1,443		1,310		4,182		4,909
Excluded Amortization	5,199		3,414		14,397		9,470
Selling and Marketing Expense [Member]
(2) Includes stock-based compensation as follows:
General and administrative	2,795		1,184		7,354		3,185
Technology And Content [Member]
(2) Includes stock-based compensation as follows:
General and administrative	5,479		3,187		15,901		7,125
General and Administrative Expense [Member]
(2) Includes stock-based compensation as follows:
General and administrative	3,377		4,092		12,215		9,613
Software Development [Member]
Costs and expenses:
Depreciation	4,954		3,231		13,741		8,923
(1) Excludes amortization as follows:
Depreciation	4,954		3,231		13,741		8,923
Technology-Based Intangible Assets [Member]
Costs and expenses:
Amortization of intangible assets	245		183		656		547
(1) Excludes amortization as follows:
Amortization of intangible assets	$ 245		$ 183		$ 656		$ 547

[1] Excludes amortization as follows:

[2] Includes stock-based compensation as follows: