Environmental Matters (Tables)

3 Months Ended

Mar. 31, 2024

Text Block [Abstract]

Environmental Obligations Recognized by Company

The following table sets forth a summary of changes in the Company’s liability for Environmental Obligations for the three months ended March 31, 2024 and 2023.

Environmental Obligations (millions)
	March 31,
	2024		2023
Total Balance at Beginning of Period	$	4.6	$	4.4
Additions		0.3		0.5
Less: Payments / Reductions		0.1		0.2
Total Balance at End of Period		4.8		4.7
Less: Current Portion		0.7		0.6
Noncurrent Balance at End of Period	$	4.1	$	4.1