Annual report pursuant to Section 13 and 15(d)

Leases (Narrative) (Details)

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Leases (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Operating Leased Assets [Line Items]      
Capital Leased Assets, Gross $ 3.6    
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation $ 0.4    
Number of real estate leases 45    
Number Of Service Center Locations 225    
Aggregate expense under operating leases $ 15.2 $ 16.5 $ 17.9