Employee Retirement Plans

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Employee Retirement Plans

Employee Retirement Plans

Amounts related to our employee retirement plans are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Defined contribution expense	$	2.5	$	2.5	$	7.5	$	6.8
Net periodic benefit cost – Supplemental Executive Retirement Plan (1)	$	0.2	$	0.2	$	0.5	$	0.5

(1) The non-service cost components of net periodic benefit cost are included in other, net (income) expense in our Consolidated Statements of Operations.