Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Deficit - Summary of Changes in Shareholders' Deficit (Detail)

v3.22.1
Shareholders' Deficit - Summary of Changes in Shareholders' Deficit (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Jan. 01, 2022
Dec. 31, 2021
Beginning balance $ (1,391.5) $ (856.1)    
Issuance of common shares from exercise of stock options, SARs, restricted stock units, employee stock purchase plan, and other 1.1 0.9    
Additional capital from share-based compensation 12.4 13.3    
Repurchases of common shares (116.2) (645.0)    
Net income 98.2 147.4    
Foreign currency translation adjustment, net of income taxes 4.4 (23.7)    
Unrealized gain/loss on derivatives, net of income taxes (2.6) 0.9    
Cumulative effect of accounting change relating to adoption of ASU 2020-06 98.2 147.4    
Net income (1,087.5)   $ 77.6 $ (1,169.0)
Ending balance (1,453.3) (1,362.3)    
Cumulative Effect, Period of Adoption, Adjustment [Member]        
Net income (59.1)      
Common Shares [Member]        
Beginning balance 0.1 0.1    
Issuance of common shares from exercise of stock options, SARs, restricted stock units, employee stock purchase plan, and other 0.0 0.0    
Ending balance 0.1 0.1    
Treasury Stock [Member]        
Beginning balance (328.9) (328.9)    
Ending balance (328.9) (328.9)    
Paid-in Capital in Excess of par Value [Member]        
Beginning balance 318.1 342.3    
Issuance of common shares from exercise of stock options, SARs, restricted stock units, employee stock purchase plan, and other 1.1 0.9    
Additional capital from share-based compensation 12.4 13.3    
Repurchases of common shares (21.9) (57.8)    
Ending balance 173.0 298.7    
Paid-in Capital in Excess of par Value [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]        
Net income (136.7)      
Accumulated Other Comprehensive Loss [Member]        
Beginning balance (211.8) (182.2)    
Foreign currency translation adjustment, net of income taxes 4.4 (23.7)    
Unrealized gain/loss on derivatives, net of income taxes (2.6) 0.9    
Ending balance (210.0) (205.0)    
Accumulated Deficit [Member]        
Beginning balance (1,169.0) (687.4)    
Repurchases of common shares (94.3) (587.2)    
Net income 98.2 147.4    
Ending balance (1,087.5) $ (1,127.2)    
Accumulated Deficit [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]        
Net income $ 77.6