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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Apr. 29, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Sep. 07, 2023
Schedule Of Capitalization Equity [Line Items]
Repurchase of shares of common stock authorized						$ 250.0
Retirement of Tripadvisor common stock and Class B common stock previously held by a related party, thereby canceling these shares		0	2,800,000	0	2,800,000
Average price of shares repurchased, common stock			$ 14.22		$ 14.22
Aggregate cost of shares repurchased, common stock			$ 40.0		$ 40.0
Remaining authorized share repurchased amount		$ 110.0		$ 110.0
Class B Common Stock
Schedule Of Capitalization Equity [Line Items]
Retirement of all treasury shares held by the company	53,100,000
Retirement treasury shares	$ 1,300.0
Liberty Tripadvisor Holdings, Inc.
Schedule Of Capitalization Equity [Line Items]
Retirement of Tripadvisor common stock and Class B common stock previously held by a related party, thereby canceling these shares	26,800,000
Average price of shares repurchased, common stock	$ 16.27
Aggregate cost of shares repurchased, common stock	$ 436.5