v3.25.2
Employee Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Components of Net Periodic Cost for Defined Benefit Pension Plans and for Postretirement Benefit Plan

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

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

 

(In millions)

 

Interest cost

 

$

5.7

 

 

$

4.1

 

 

$

11.4

 

 

$

8.2

 

Actuarial loss amortization

 

 

5.0

 

 

 

3.3

 

 

 

10.0

 

 

 

6.6

 

Less: Expected return on plan assets

 

 

(5.5

)

 

 

(4.4

)

 

 

(11.0

)

 

 

(8.8

)

Net periodic pension cost

 

$

5.2

 

 

$

3.0

 

 

$

10.4

 

 

$

6.0

 

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

 

(In millions)

 

Interest cost

 

$

0.1

 

 

$

0.1

 

 

$

0.2

 

 

$

0.2

 

Actuarial gain amortization

 

 

(0.5

)

 

 

(0.6

)

 

 

(1.0

)

 

 

(1.1

)

Net periodic postretirement benefit gain

 

$

(0.4

)

 

$

(0.5

)

 

$

(0.8

)

 

$

(0.9

)