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Future Minimum Rental Commitments - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Operating Lease Obligations [Line Items]      
2016 $ 23.5    
2017 16.0    
2018 11.2    
2019 7.4    
2020 4.3    
Future years 5.5    
Total 67.9    
Rent expense for non-cancelable operating leases $ 23.7 $ 26.5 $ 29.8
Minimum [Member]      
Operating Lease Obligations [Line Items]      
Operating lease term, years 1 year    
Maximum [Member]      
Operating Lease Obligations [Line Items]      
Operating lease term, years 7 years