Pension and Other Postretirement Employee Benefit Plans - (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Components of Net Periodic Cost of Pension and Other Postretirement Employee Benefit Plans

The following table details the components of net periodic cost of our company-sponsored pension and other postretirement employee benefit plans for the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
Pension Benefit Plans	2020		2019		2020		2019
Service cost	$	0.5	$	0.6	$	1.7	$	1.8
Interest cost	2.6		3.1		7.8		9.3
Expected return on plan assets	(3.8)		(4.1)		(11.3)		(12.4)
Amortization of actuarial loss	2.4		1.8		7.4		5.5
Net periodic cost	$	1.7	$	1.4	$	5.6	$	4.3

	Three Months Ended September 30,				Nine Months Ended September 30,
Other Postretirement Employee  Benefit Plans	2020		2019		2020		2019
Service cost	$	—	$	—	$	0.1	$	0.1
Interest cost	$	0.6	$	0.7	$	1.8	$	2.1
Amortization of actuarial loss (gain)	—		(0.1)		—		(0.3)
Net periodic cost	$	0.7	$	0.6	$	1.8	$	1.9

Defined Contribution Plan Disclosures

We record the service component of net periodic cost (benefit) as part of "Cost of sales" and "Selling, general, and administrative expenses," while the non-service components of net periodic cost (benefit) are recorded to "Other non-operating expense" on our Consolidated Statements of Operations. For the three and nine months ended September 30, 2020, we recorded $0.3 million and $1.1 million to "Cost of sales" and $0.2 million and $0.7 million to "Selling, general, and administrative expenses". For the three and nine months ended September 30, 2019, we recorded $0.4 million and $1.1 million to "Cost of sales" and $0.3 million and $0.8 million to "Selling, general, and administrative expenses".