Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Shareholders' Deficit - Summary of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ (856.1) $ (390.0)
Other comprehensive (loss) income before reclassifications, net of tax (23.1) (50.7)
Amounts reclassified from accumulated other comprehensive loss to income, net of tax (0.3) (0.2)
Total other comprehensive loss (22.8) (50.5)
Ending balance (1,362.3) (388.5)
Foreign Currency Translation Adjustments [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance 178.4 (211.6)
Other comprehensive (loss) income before reclassifications, net of tax (23.7) (57.1)
Total other comprehensive loss (23.7) (57.1)
Ending balance (202.1) (268.7)
Unrealized (Loss) Gain on Derivatives [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (3.8) (0.9)
Other comprehensive (loss) income before reclassifications, net of tax 0.6 6.4
Amounts reclassified from accumulated other comprehensive loss to income, net of tax (0.3) (0.2)
Total other comprehensive loss 0.9 6.6
Ending balance (2.9) 5.7
Accumulated Other Comprehensive Loss [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (182.2) (212.5)
Ending balance $ (205.0) $ (263.0)