Commitments, Contingencies and Litigation Judgment (Leases) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Rental expense	$ 19.7	$ 18.6	$ 17.6
Capital Leases
2016	4.9
2017	3.7
2018	3.6
2019	3.6
2020	3.0
Thereafter	0.0
Total minimum lease payments	18.8
Amounts representing interest	1.1
Present value of minimum lease payments	17.7
Current maturities	4.4
Long-term capital lease obligations	13.3
Operating Leases
2016	14.5
2017	11.0
2018	7.6
2019	4.4
2020	2.9
Thereafter	5.1
Total minimum lease payments	45.5
Affiliated Entity
Related Party Transaction [Line Items]
Rental expense	$ 2.4