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Derivative Financial Instruments (Textuals) (Details)
€ in Millions, ¥ in Millions, $ in Millions
3 Months Ended
Mar. 31, 2017
EUR (€)
MBbls
Mar. 31, 2017
JPY (¥)
Mar. 31, 2017
USD ($)
Mar. 31, 2017
USD ($)
MBbls
Dec. 31, 2016
EUR (€)
Forward Start Interest Rate Swap [Member]          
Derivative [Line Items]          
Notional amount       $ 34.3  
Maximum term (in years) 5 years 5 years 5 years    
Derivative, underlying basis one-month London Interbank Offered Rate (“LIBOR”) one-month London Interbank Offered Rate (“LIBOR”) one-month London Interbank Offered Rate (“LIBOR”)    
Fixed interest rate 5.41%     5.41%  
Forward Contracts [Member]          
Derivative [Line Items]          
Notional amount | € € 73.0       € 57.5
Debt EUR Denominated [Member]          
Derivative [Line Items]          
Notional amount, nonderivative instruments € 21.0   $ 22.4    
Cumulative foreign currency translation gain       $ 1.4  
Cumulative foreign currency translation gain, net of tax       0.9  
Debt Yen Denominated [Member]          
Derivative [Line Items]          
Notional amount, nonderivative instruments   ¥ 500.0 4.5    
Cumulative foreign currency translation gain       0.3  
Cumulative foreign currency translation gain, net of tax       $ 0.2  
Options Held [Member]          
Derivative [Line Items]          
Derivative, nonmonetary notional amount | MBbls 96,525     96,525  
Premium paid     0.2    
Loss related to call options     $ 0.2    
Long [Member] | Designated as Hedging Instrument [Member] | Singapore, Dollars | Foreign Exchange Forward [Member]          
Derivative [Line Items]          
Notional amount       $ 35.6  
Long [Member] | Designated as Hedging Instrument [Member] | United States of America, Dollars | Foreign Exchange Forward [Member]          
Derivative [Line Items]          
Notional amount       51.5  
Long [Member] | Designated as Hedging Instrument [Member] | Japan, Yen | Foreign Exchange Forward [Member]          
Derivative [Line Items]          
Notional amount       5,752.0  
Short [Member] | Designated as Hedging Instrument [Member] | Singapore, Dollars | Foreign Exchange Forward [Member]          
Derivative [Line Items]          
Notional amount € 7.4     17.2  
Short [Member] | Designated as Hedging Instrument [Member] | United States of America, Dollars | Foreign Exchange Forward [Member]          
Derivative [Line Items]          
Notional amount 48.1     0.0  
Short [Member] | Designated as Hedging Instrument [Member] | Japan, Yen | Foreign Exchange Forward [Member]          
Derivative [Line Items]          
Notional amount € 16.8     $ 33.1