Other Operating Charges, net (Tables)

6 Months Ended

Jun. 30, 2020

Other Income and Expenses [Abstract]

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Reorganization expenses	$	0.6	$	0.1	$	3.4	$	0.1
Union settlement	—		—		6.6		—
Gain on divested assets	—		—		(1.4)		—
Directors' equity-based compensation expense (benefit)	1.9		—		2.1		(0.3)
Other	0.5		0.3		0.8		0.4
	$	3.0	$	0.4	$	11.5	$	0.1