Environmental (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Loss Contingencies [Line Items]
Environmental remediation costs	$ 1.6	$ 0.3
Accrued environmental liability	$ 116.6		$ 117.7
Estimated time frame to remediate contigency	P30Y
Other Noncurrent Liabilities [Member]
Loss Contingencies [Line Items]
Accrued environmental liability	$ 94.5		$ 95.6