Segment Information - Additional Information (Details)	9 Months Ended
Segment Information - Additional Information (Details)	Sep. 30, 2025 Segment
Segment Reporting [Abstract]
Number of reportable segment	3
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	srt:ChiefExecutiveOfficerMember
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description	Adjusted EBITDA is our reported measure of segment profit and a key measure used by our CODM and Board of Directors to understand and evaluate the operating performance of our business as a whole and our individual operating segments, and on which internal budgets and forecasts are based and approved. We define adjusted EBITDA as net income (loss) plus: (1) (provision) benefit for income taxes; (2) other income (expense), net; (3) depreciation and amortization; (4) stock-based compensation; (5) goodwill, long-lived asset, and intangible assets impairments; (6) legal reserves, settlements and other (including indirect tax reserves related to audit settlements and the impact of one-time changes resulting from enacted indirect tax legislation); (7) restructuring and other related reorganization costs; (8) transaction related expenses; and (9) non-recurring expenses and income unusual in nature or infrequently occurring.

TripAdvisor, Inc. 10-Q