Environmental and Safety Matters (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Accrual for Environmental Loss Contingencies	$ 5.1	$ 5.6
Number of years the related expenditures are expected to cover assessment and remediation costs (in years)	6 years
Accrued Environmental Loss Contingencies, Current	$ 1.7	1.7
Accrued Environmental Loss Contingencies, Noncurrent	$ 3.4	$ 3.9