Non-operating Income (Expense) (Tables)

9 Months Ended

Sep. 30, 2024

Nonoperating Income (Expense) [Abstract]

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

	Quarter Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Interest expense	$	(13.0)	$	(3.0)	$	(24.6)	$	(9.1)
Amortization of debt issuance costs and accretion of debt discount	(0.6)		(0.1)		(1.2)		(0.4)
Interest income	0.4		0.9		1.8		1.5
Interest expense, net	(13.1)		(2.2)		(24.0)		(7.9)
Non-operating pension and other postretirement employee benefits	0.3		0.1		1.0		0.3
Total non-operating expense	$	(12.8)	$	(2.1)	$	(22.9)	$	(7.6)