Other Operating Charges, net (Tables)

9 Months Ended

Sep. 30, 2020

Other Income and Expenses [Abstract]

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Reorganization expenses	$	—	$	0.9	$	3.4	$	1.0
Union settlement	—		—		6.6		—
Gain on divested assets	—		—		(1.4)		—
Directors' equity-based compensation expense (benefit)	0.3		0.4		2.5		0.1
Other	—		0.6		0.8		1.0
	$	0.3	$	1.9	$	11.9	$	2.1