Non-operating Income (Expense) (Notes)

6 Months Ended

Jun. 30, 2022

Nonoperating Income (Expense) [Abstract]

Other Nonoperating Income and Expense [Text Block]

Non-Operating Expense

The components of “Non-operating expense” in the Consolidated Statements of Operations for the quarter and six months ended June 30, 2022 and 2021 are reflected in the table below:

	Quarter Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Interest expense	$	(10.4)	$	(9.1)	$	(18.6)	$	(18.2)
Amortization of debt issuance costs	(0.4)		(0.5)		(0.8)		(0.9)
Interest income	0.1		0.2		0.1		0.6
Interest expense, net	(10.7)		(9.3)		(19.3)		(18.6)
Debt retirement costs	(0.3)		—		(0.5)		—
Non-operating pension and other postretirement employee benefits expense	(1.4)		(2.5)		(2.8)		(5.0)
Total non-operating expense	$	(12.4)	$	(11.8)	$	(22.7)	$	(23.6)