Basis of Presentation - Additional Information (Details) shares in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($) Vote Language Country VotePerShare	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) Vote Language Country VotePerShare shares	Sep. 30, 2023 USD ($)	Dec. 31, 2023 Country Restaurant
Description Of Business And Basis Of Presentation [Line Items]
Number of languages supported worldwide on our website | Country	40		40
Number of languages worldwide | Language	20		20
Description of user-generated reviews and opinions across broad base of global travel-related businesses					Tripadvisor offered more than 1 billion user-generated ratings and reviews on over 8 million experiences, accommodations, restaurants, airlines, and cruises.
TheFork
Description Of Business And Basis Of Presentation [Line Items]
Number of Restaurants | Restaurant					55,000
Number of countries related to The Fork operates | Country					11
Liberty Tripadvisor Holdings, Inc.
Description Of Business And Basis Of Presentation [Line Items]
Beneficially ownership of shares of common stock | shares			16.4
Percentage taken from outstanding shares of common stock			13.00%
Percentage of beneficially ownership of shares of common stock class B			21.00%
Right to voting			one vote per share
Vote per common stock share | VotePerShare	1		1
Beneficially ownership of equity securities			57.00%
Related party transactions | $	$ 0	$ 0	$ 0	$ 0
Liberty Tripadvisor Holdings, Inc. | Class B Common Stock
Description Of Business And Basis Of Presentation [Line Items]
Beneficially ownership of shares of common stock | shares			12.8
Percentage taken from outstanding shares of common stock			100.00%
Right to voting			ten votes per share
Vote per common stock share | Vote	10		10