XML 79 R68.htm IDEA: XBRL DOCUMENT v3.20.2
Derivatives and Hedging Activity - Summary of Notional and Fair Values of Derivative Instruments (Parenthetical) (Detail) - Foreign Exchange Contracts [Member] - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Call Options [Member]    
Derivatives, Fair Value [Line Items]    
Foreign exchange derivative contracts $ 253.7 $ 342.0
Put Options [Member]    
Derivatives, Fair Value [Line Items]    
Foreign exchange derivative contracts 253.7 342.0
Forward Contracts [Member] | Call Options [Member]    
Derivatives, Fair Value [Line Items]    
Foreign exchange derivative contracts 73.9 43.8
Forward Contracts [Member] | Put Options [Member]    
Derivatives, Fair Value [Line Items]    
Foreign exchange derivative contracts $ 11.7 $ 12.1