Defined Benefit Plan (Tables)

9 Months Ended

Sep. 30, 2019

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)	2019		2018		2019		2018
Service cost	$	0.7	$	0.8	$	2.1	$	2.4
Interest cost	1.6		1.3		4.6		4.1
Expected return on plan assets	(2.4)		(2.5)		(7.2)		(7.7)
Amortization of unrecognized loss(1)	0.8		1.1		2.5		3.4
Net periodic benefit cost	$	0.7	$	0.7	$	2.0	$	2.2

⁽¹⁾Includes amortization of unrecognized actuarial (gain) loss and prior service credits and excludes provision for income tax of $(0.2) million and $(0.6) million for the three and nine months ended September 30, 2019, and $(0.6) million and $(0.9) million for the three and nine months ended September 30, 2018, respectively.