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Goodwill and Intangible Assets (Textuals) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Foreign currency translation gains (losses) $ 0.9 $ 1.2  
Amortization expense 3.5 $ 4.9 $ 3.9
Estimated annual amortization expense, 2016 2.9    
Estimated annual amortization expense, 2017 2.7    
Estimated annual amortization expense, 2018 2.5    
Estimated annual amortization expense, 2019 2.5    
Estimated annual amortization expense, 2020 2.4    
Indefinite-lived trademarks $ 10.0