Employee Benefits

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Employee Benefits

Employee Benefits

Defined Benefit Retirement Plans (Retirement Plans) and Postretirement Benefits Other Than Pension (PBOP)

Components of net periodic benefit cost for both the Retirement Plans and PBOP for the three months ended September 30, 2020 and 2019, were as follows (in millions):

	Retirement Plans				PBOP
	For the Three Months Ended September 30,				For the Three Months Ended September 30,
	2020		2019		2020		2019
Service cost	$	0.7	$	0.7	$	—	$	—
Interest cost	0.7		0.9		0.3		0.4
Expected return on plan assets	(1.4)		(1.6)		(0.8)		(0.6)
Amortization of unrecognized net loss	0.8		0.4		—		—
Settlement charge	0.6		0.6		—		—
Net periodic benefit cost	$	1.4	$	1.0	$	(0.5)	$	(0.2)

Components of net periodic benefit cost for both the Retirement Plans and PBOP for the nine months ended September 30, 2020 and 2019, were as follows (in millions):

	Retirement Plans				PBOP
	For the Nine Months Ended September 30,				For the Nine Months Ended September 30,
	2020		2019		2020		2019
Service cost	$	2.1	$	2.3	$	—	$	—
Interest cost	2.2		3.1		0.9		1.1
Expected return on plan assets	(4.7)		(4.8)		(2.4)		(2.2)
Amortization of unrecognized net loss	1.6		1.6		—		—
Settlement charge	2.2		2.7		—		—
Net periodic benefit cost	$	3.4	$	4.9	$	(1.5)	$	(1.1)

During the nine months ended September 30, 2020, the Company made $3.6 million in contributions to the defined benefit pension plan, and does not expect to fund any additional amounts in 2020.

Defined Contribution Plans

Texas Gas employees hired on or after November 1, 2006, and all other employees of the Company are provided retirement benefits under a defined contribution plan, which also provides 401(k) plan benefits to its participants. Costs related to the Company’s defined contribution plan were $3.0 million and $2.8 million for the three months ended September 30, 2020 and 2019, and $8.8 million and $8.4 million for the nine months ended September 30, 2020 and 2019.