Pension Plans (Tables)

3 Months Ended

Mar. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Pension (Benefit) Cost

The components of net periodic pension (benefit) cost for the defined benefit pension plans included in the Company’s results of operations are as follows:

	Three Months Ended March 31,
	2021			2020
(in millions)	Pension Plans
Interest cost	$	3.7		$	4.6
Expected return on plan assets		(4.6	)		(5.6	)
Recognized net actuarial loss		0.8			1.5
Net periodic pension (benefit) cost	$	(0.1	)	$	0.5