Pension and Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Schedule of net periodic benefit cost

The components of net periodic benefit (income) expense costs recognized for the three and nine months ended September 30, 2023 and 2022 were as follows:

	Pension Benefits								Postretirement Benefits
	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022		2023		2022		2023		2022
	(In millions)
Service costs	$	0.9	$	1.1	$	3.4	$	3.3	$	—	$	—	$	—	$	—
Interest costs	0.9		0.4		2.6		1.3		—		—		0.2		0.1
Expected return on plan assets	(2.5)		(3.2)		(7.5)		(9.7)		—		—		(0.1)		(0.2)
Recognized net actuarial loss	0.9		—		2.7		—		0.1		0.1		0.2		0.2
Net periodic benefit expense (income)	$	0.2	$	(1.7)	$	1.2	$	(5.1)	$	0.1	$	0.1	$	0.3	$	0.1