Amount of increase (decrease) in value of liability in contingent consideration arrangement in business combination, including, but not limited to, difference arising upon settlement.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration on purchase price	$ 75.1	$ 10.7
Payment of contingent consideration	3.2	0.0	$ 3.7
Fair value remeasurement adjustments	45.8	(1.2)	(2.3)
Market-based share awards liability	0.5	0.5
Other Noncurrent Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Market-based share awards liability	0.5	0.5
Selling, General and Administrative Expenses [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value remeasurement adjustments	45.8	$ (1.2)	$ (2.4)
AV-iQ, Glamping Americas and Insurtech
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Payment of contingent consideration	3.4
Expected to be Settled in 2026 [Member] \| Other Acquisitions [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration on purchase price	11.5
Expected to be Settled in 2027 [Member] \| Other Acquisitions [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration on purchase price	8.4
Expected to be Settled in 2028 [Member] \| Other Acquisitions [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration on purchase price	52.9
Expected to be Settled Between 2026 Through 2028 [Member] \| This is Beyond Ltd [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration on purchase price	$ 2.3