XML 29 R21.htm IDEA: XBRL DOCUMENT v3.25.3
Pension and Other Postretirement Employee Benefits
 9 Months Ended
Sep. 30, 2025
Retirement Benefits, Description [Abstract]  
Pension and Other Postretirement Employee Benefits

NOTE 11. PENSION AND OTHER POSTRETIREMENT EMPLOYEE BENEFITS

The following table details the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefit plans (OPEB):

 

 

 

Three Months Ended September 30,

 

 

 

Pension

 

 

OPEB

 

(in thousands)

 

2025

 

 

2024

 

 

2025

 

 

2024

 

Service cost

 

$

1,266

 

 

$

1,321

 

 

$

15

 

 

$

22

 

Interest cost

 

 

3,230

 

 

 

3,124

 

 

 

252

 

 

 

220

 

Expected return on plan assets

 

 

(2,933

)

 

 

(3,237

)

 

 

—

 

 

 

—

 

Amortization of prior service cost

 

 

—

 

 

 

5

 

 

 

—

 

 

 

—

 

Amortization of actuarial (gain) loss

 

 

43

 

 

 

19

 

 

 

(241

)

 

 

(331

)

Total net periodic cost

 

$

1,606

 

 

$

1,232

 

 

$

26

 

 

$

(89

)

 

 

 

 

Nine Months Ended September 30,

 

 

 

Pension

 

 

OPEB

 

(in thousands)

 

2025

 

 

2024

 

 

2025

 

 

2024

 

Service cost

 

$

3,799

 

 

$

3,964

 

 

$

43

 

 

$

69

 

Interest cost

 

 

9,688

 

 

 

9,369

 

 

 

755

 

 

 

658

 

Expected return on plan assets

 

 

(8,798

)

 

 

(9,711

)

 

 

—

 

 

 

—

 

Amortization of prior service cost

 

 

—

 

 

 

15

 

 

 

—

 

 

 

—

 

Amortization of actuarial (gain) loss

 

 

129

 

 

 

59

 

 

 

(721

)

 

 

(992

)

Total net periodic cost

 

$

4,818

 

 

$

3,696

 

 

$

77

 

 

$

(265

)

Funding of our non-qualified pension and other postretirement employee benefit plans was $3.0 million and $3.3 million for the nine months ended September 30, 2025 and 2024, respectively. During the nine months ended September 30, 2025 and 2024, we made contributions to our qualified pension benefit plan of $5.7 million and $4.0 million, respectively.