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Property and Equipment - Table 2 (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Fully Depreciated Assets and Assets Under Capital Lease Obligations    
Fully depreciated assets $ 252.4 $ 240.9
Assets under capital lease obligations:    
Capital Leased Assets, Gross 340.7 129.8
Accumumlated Amortization (66.6) (55.2)
Assets Under Capital Lease Obligations, Net 274.1 74.6
Building [Member]    
Assets under capital lease obligations:    
Capital Leased Assets, Gross 333.9 124.4
Vehicles [Member]    
Assets under capital lease obligations:    
Capital Leased Assets, Gross 6.5 5.2
Equipment [Member]    
Assets under capital lease obligations:    
Capital Leased Assets, Gross $ 0.3 $ 0.2