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Derivative Financial Instruments - Additional Information (Details)
€ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
item
Sep. 30, 2018
USD ($)
Sep. 30, 2019
EUR (€)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
Derivative [Line Items]              
Foreign currency unrealized losses expected to be reclassified into earnings over next twelve months $ (16,300,000)   $ (16,300,000)        
Foreign currency unrealized gains expected to be reclassified into earnings over next twelve months, tax $ 5,200,000   $ 5,200,000        
3.95% senior unsecured notes due 2027              
Derivative [Line Items]              
Debt instrument, interest rate 3.95%   3.95%   3.95%   3.95%
Interest Rate Swap Agreements              
Derivative [Line Items]              
Derivative fixed interest rate (as a percent) 0.52%   0.52%   0.52%    
Carrying value / fair value of derivative liabilities included in other liabilities $ 700,000   $ 700,000     $ 500,000  
Interest Rate Swap Agreements | Designated as Hedging Instrument              
Derivative [Line Items]              
Floating rate obligation | €         € 44.9    
Interest Rate Swap Agreements | EUR              
Derivative [Line Items]              
Variable interest rate basis     Euribor        
Interest Rate Swap Final Maturity Period One              
Derivative [Line Items]              
Final maturity date of swap amortization     Jun. 30, 2023        
Interest Rate Swap Final Maturity Period Two              
Derivative [Line Items]              
Final maturity date of swap amortization     Jun. 30, 2024        
Treasury Lock | Interest Lock Agreement | 3.95% senior unsecured notes due 2027              
Derivative [Line Items]              
Percentage of reduction in effective interest rate on senior notes     0.25%        
Foreign Currency Forward Exchange Contracts              
Derivative [Line Items]              
Number of credit contingency features | item     0        
Foreign Currency Forward Exchange Contracts | Cash Flow Hedging              
Derivative [Line Items]              
Gains (losses) in other comprehensive income, effective portion 16,900,000 $ 600,000 $ 25,700,000 $ 13,100,000      
Foreign Currency Forward Exchange Contracts | Designated as Hedging Instrument              
Derivative [Line Items]              
Carrying value / fair value of derivative liabilities included in other liabilities 31,600,000   31,600,000     15,300,000  
Notional amount 439,600,000   439,600,000     416,500,000  
Carrying value / fair value of derivative assets included in other assets 300,000   300,000     1,300,000  
Carrying value / fair value of derivative liabilities included in non-current liabilities 9,700,000   9,700,000        
Foreign Currency Forward Exchange Contracts | Designated as Hedging Instrument | Cash Flow Hedging              
Derivative [Line Items]              
Net gain (loss) recognized in gross margin (3,800,000) (900,000) (8,400,000) 2,500,000      
Foreign Currency Forward Exchange Contracts | Not Designated as Hedging Instrument              
Derivative [Line Items]              
Carrying value / fair value of derivative liabilities included in other liabilities 400,000   400,000        
Carrying value / fair value of derivative assets included in other assets 200,000   200,000     $ 300,000  
Foreign exchange net losses on derivative contracts not designated as hedges 1,300,000 $ 100,000 1,900,000 $ 4,100,000      
Commodity Swap Agreements              
Derivative [Line Items]              
Carrying value / fair value of derivative liabilities included in other liabilities 4,600,000   4,600,000        
Notional amount $ 20,100,000   $ 20,100,000