Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Shareholders' Deficit - Summary of Changes in Shareholders' Deficit (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Beginning balance $ (534.2) $ (779.4) $ (723.4) $ (334.7)
Issuance of 0.1, 2.0, 0.6 and 5.9 common shares from exercise of stock options, SARs, restricted stock units, employee stock purchase plan, and other 0.9 0.7 2.4 1.8
Additional capital from share-based compensation 9.2 11.6 29.7 31.8
Repurchases of 0.1, 1.0, 0.2 and 14.1 common shares (0.9) (54.9) (9.9) (736.4)
Issuance of convertible senior notes       136.7
Repurchase of convertible senior notes       (123.0)
Unwind of capped call transactions       55.9
Net income 81.5 71.2 254.3 247.7
Foreign currency translation adjustment, net of income taxes of (0.1), (2.4), (1.1) and (4.4) (24.0) (4.6) (18.7) (34.2)
Unrealized loss on derivatives, net of income taxes of $—, $—, $— and $— 0.0 (5.7) (1.9) (4.3)
Cumulative effect of accounting change       (2.4)
Ending balance (467.5) (761.1) (467.5) (761.1)
Common Shares [Member]        
Beginning balance 0.1 0.1 0.1 0.1
Ending balance 0.1 0.1 0.1 0.1
Treasury Stock [Member]        
Beginning balance (328.9) (328.9) (328.9) (328.6)
Repurchases of 0.1, 1.0, 0.2 and 14.1 common shares       (0.3)
Ending balance (328.9) (328.9) (328.9) (328.9)
Paid-in Capital in Excess of par Value [Member]        
Beginning balance 354.5 389.4 341.5 407.3
Issuance of 0.1, 2.0, 0.6 and 5.9 common shares from exercise of stock options, SARs, restricted stock units, employee stock purchase plan, and other 0.9 0.7 2.4 1.8
Additional capital from share-based compensation 9.2 11.6 29.7 31.8
Repurchases of 0.1, 1.0, 0.2 and 14.1 common shares (0.9) (54.9) (9.9) (163.7)
Issuance of convertible senior notes       136.7
Repurchase of convertible senior notes       (123.0)
Unwind of capped call transactions       55.9
Ending balance 363.7 346.8 363.7 346.8
Accumulated Other Comprehensive Loss [Member]        
Beginning balance (206.4) (193.6) (209.8) (165.4)
Foreign currency translation adjustment, net of income taxes of (0.1), (2.4), (1.1) and (4.4) (24.0) (4.6) (18.7) (34.2)
Unrealized loss on derivatives, net of income taxes of $—, $—, $— and $— 0.0 (5.7) (1.9) (4.3)
Ending balance (230.4) (203.9) (230.4) (203.9)
Accumulated Deficit [Member]        
Beginning balance (353.5) (646.4) (526.3) (248.1)
Repurchases of 0.1, 1.0, 0.2 and 14.1 common shares       (572.4)
Net income 81.5 71.2 254.3 247.7
Cumulative effect of accounting change       (2.4)
Ending balance $ (272.0) $ (575.2) $ (272.0) $ (575.2)