Annual report [Section 13 and 15(d), not S-K Item 405]

Shareholders' Deficit - Summary of Changes in Accumulated Other Comprehensive Loss (Detail)

v3.25.4
Shareholders' Deficit - Summary of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance $ (801.1)    
Total other comprehensive income (loss) 19.9 $ (39.4) $ 18.2
Ending balance (515.1) (801.1)  
Foreign Currency Translation Adjustments [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance (282.3) (230.6) (248.2)
Other comprehensive income (loss) before reclassifications, net of tax 34.1 (51.7) 17.6
Amounts reclassified from accumulated other comprehensive loss to income, net of tax(1) [1] 0.0 0.0 0.0
Total other comprehensive income (loss) 34.1 (51.7) 17.6
Ending balance (248.2) (282.3) (230.6)
Unrealized (Loss) Gain on Derivatives [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance 10.9 (1.4) (2.0)
Other comprehensive income (loss) before reclassifications, net of tax (5.0) 13.0 (7.7)
Amounts reclassified from accumulated other comprehensive loss to income, net of tax(1) [1] (9.2) (0.7) 8.3
Total other comprehensive income (loss) (14.2) 12.3 0.6
Ending balance (3.3) 10.9 (1.4)
Accumulated Other Comprehensive Loss [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance (271.4) (232.0) (250.2)
Other comprehensive income (loss) before reclassifications, net of tax 29.1 (38.7) 9.9
Amounts reclassified from accumulated other comprehensive loss to income, net of tax(1) [1] (9.2) (0.7) 8.3
Total other comprehensive income (loss) 19.9 (39.4) 18.2
Ending balance $ (251.5) $ (271.4) $ (232.0)
[1] See Note 2, Basis of Presentation, and Note 11, Derivative Instruments and Hedging Activities, for information regarding the location within the consolidated statements of income of gains (losses) reclassified from accumulated other comprehensive loss to income during the years ended December 31, 2025, 2024, and 2023.