XML 46 R34.htm IDEA: XBRL DOCUMENT v3.19.1
Employee Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2019
Compensation And Retirement Disclosure [Abstract]  
Components of Net Periodic Cost for Defined Benefit Pension Plan and for Postretirement Benefit Plan

The components of net periodic cost for our defined benefit pension plan and for our postretirement benefit plan are included in the following tables:

 

 

 

Three Months Ended March 31,

 

Net Periodic Pension Cost

 

2019

 

 

2018

 

Interest cost

 

$

4.5

 

 

$

4.1

 

Actuarial loss amortization

 

 

3.2

 

 

 

3.6

 

Less: Expected return on plan assets

 

 

(5.9

)

 

 

(6.5

)

Net periodic pension cost

 

$

1.8

 

 

$

1.2

 

 

 

 

Three Months Ended March 31,

 

Net Periodic Postretirement Benefit

 

2019

 

 

2018

 

Service benefit

 

$

 

 

$

 

Interest cost

 

 

0.1

 

 

 

0.1

 

Actuarial gain amortization

 

 

(0.6

)

 

 

(0.6

)

Prior service credit amortization

 

 

 

 

 

(0.1

)

Net periodic postretirement benefit gain

 

$

(0.5

)

 

$

(0.6

)