XML 67 R57.htm IDEA: XBRL DOCUMENT v3.20.2
Shareholders' Deficit - Summary of Changes in Shareholders' Deficit (Parenthetical) (Detail) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Equity [Abstract]        
Issuance of common shares 0.3 0.2 0.7 0.6
Repurchases of common shares 0.5 0.1 0.6 0.2
Forward Counterparties' delivery of common shares to the Company       2.0
Foreign currency translation adjustment, tax $ (2.3) $ (1.5) $ (4.8) $ (1.0)
Unrealized loss on derivatives, tax     $ (0.3)