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Relationship with Marriott International - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Management fees
Related Party Transaction [Line Items]
Management fees	$ 254.0	$ 249.0	$ 217.0
Agreements with Marriott International Inc
Related Party Transaction [Line Items]
Percentage of management agreements, based on revenues	60.00%
Franchise fees	$ 8.3	8.1	7.7
Agreements with Marriott International Inc | Management fees
Related Party Transaction [Line Items]
Management fees	$ 180.0	$ 168.0	$ 136.0

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Fees paid in connection with a franchise agreement.

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