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Debt (Details Textuals) - Long-term Debt, Type [Domain]
€ in Millions, $ in Millions
6 Months Ended
Jun. 30, 2015
USD ($)
Mar. 31, 2015
EUR (€)
Debt Instrument [Line Items]    
Line of Credit Facility, Remaining Borrowing Capacity $ 680.1  
Debt Instrument, Face Amount 250.0  
1.47% EURO Senior Notes [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount | €   € 125
Debt Instrument, Interest Rate, Stated Percentage   1.47%
Gain (Loss) on Derivative Used in Net Investment Hedge, Net of Tax 1.0  
Debt Issuance Cost $ (0.4)