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Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss Attributable to Controlling Interests (Detail)
$ in Millions
 3 Months Ended
Mar. 31, 2021
USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]  
Balance as of December 31, 2020 $ (643.6)
Balance as of March 31, 2021 (527.8)
Pension Liability [Member]  
Accumulated Other Comprehensive Income Loss [Line Items]  
Balance as of December 31, 2020 (56.1)
Net change in period 1.0
Balance as of March 31, 2021 (55.1)
Foreign Currency Translation [Member]  
Accumulated Other Comprehensive Income Loss [Line Items]  
Balance as of December 31, 2020 (491.1)
Net change in period 58.0
Balance as of March 31, 2021 (433.1)
Fair Value of Derivative Investments [Member]  
Accumulated Other Comprehensive Income Loss [Line Items]  
Balance as of December 31, 2020 (96.4)
Net change in period 56.8
Balance as of March 31, 2021 (39.6)
Accumulated Other Comprehensive Loss [Member]  
Accumulated Other Comprehensive Income Loss [Line Items]  
Balance as of December 31, 2020 (643.6)
Net change in period 115.8
Balance as of March 31, 2021 $ (527.8)