CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other (expense) income	[1]	$ (8.0)	$ (119.0)	$ 20.0
Elimination of Silversea Reporting Lag
Other (expense) income				$ (62.6)

[1] Including a $62.6 million net loss related to the 2021 elimination of the Silversea Cruises reporting lag for the year ended December 31, 2021.