Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit cost follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2021		2020		2021		2020
Service cost	$	0.8	$	0.8	$	2.2	$	2.2
Interest cost	0.6		1.1		2.0		3.4
Expected return on plan assets	(2.4)		(2.4)		(7.3)		(7.3)
Amortization of unrecognized loss(1)	1.6		1.3		4.8		4.0
Settlement expense	0.5		—		1.4		—
Net periodic benefit cost	$	1.1	$	0.8	$	3.1	$	2.3

(1)Includes amortization of unrecognized actuarial (gain) loss and prior service credits and excludes provision for income tax of $(0.4) million and $(1.2) million for the three and nine months ended September 30, 2021, respectively, and $(0.4) million and $(1.0) million for the three and nine months ended September 30, 2020, respectively.