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Derivatives and Hedging Activities - Narrative (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
derivative
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
derivative
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
derivative
Sep. 30, 2015
EUR (€)
4.50% Senior Notes due September 2023            
Derivative [Line Items]            
Debt interest rate 4.50%   4.50%      
Foreign currency forward and option contracts            
Derivative [Line Items]            
Decrease in translated value $ (4.3)   $ (4.3)   $ (0.3)  
Foreign currency forward and option contracts | Designated as hedging instruments            
Derivative [Line Items]            
Maximum original maturity of foreign currency forward contracts     12 months      
Net unrealized gain (loss) related to cash flow hedging activities $ 2.0 $ (2.4) $ 5.4 $ 0.4    
Estimate of net unrealized derivative losses included in AOCI to be reclassified into earnings in next twelve months     $ 2.4      
Foreign currency forward and option contracts | Derivatives not designated as hedging instruments            
Derivative [Line Items]            
Maximum original maturity of foreign currency forward contracts     12 months      
Interest rate swaps            
Derivative [Line Items]            
Number of derivative instruments outstanding | derivative 0   0   0  
EUR - Denominated debt | Net investment hedge | 4.50% Senior Notes due September 2023            
Derivative [Line Items]            
Debt instrument aggregate principal | €           € 400,000,000
Debt interest rate           4.50%
EUR - Denominated debt | Designated as hedging instruments | Net investment hedge            
Derivative [Line Items]            
Decrease in translated value $ 14.0   $ 14.0      
Decrease in translated value net after tax $ 10.5   $ 10.5