XML 40 R31.htm IDEA: XBRL DOCUMENT v3.22.2.2
Pension and Other Postretirement Employee Benefits (Tables)
9 Months Ended
Sep. 30, 2022
Retirement Benefits, Description [Abstract]  
Components of Net Periodic Cost (Benefit)

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

 

 

 

Three Months Ended September 30,

 

 

 

Pension

 

 

OPEB

 

(in thousands)

 

2022

 

 

2021

 

 

2022

 

 

2021

 

Service cost

 

$

1,652

 

 

$

2,045

 

 

$

79

 

 

$

168

 

Interest cost

 

 

2,611

 

 

 

2,633

 

 

 

228

 

 

 

317

 

Expected return on plan assets

 

 

(2,259

)

 

 

(3,525

)

 

 

 

 

 

 

Amortization of prior service cost (credit)

 

 

19

 

 

 

21

 

 

 

155

 

 

 

(298

)

Amortization of actuarial loss (gain)

 

 

1,150

 

 

 

3,578

 

 

 

(96

)

 

 

545

 

Total net periodic cost

 

$

3,173

 

 

$

4,752

 

 

$

366

 

 

$

732

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nine Months Ended September 30,

 

 

 

Pension

 

 

OPEB

 

(in thousands)

 

2022

 

 

2021

 

 

2022

 

 

2021

 

Service cost

 

$

5,153

 

 

$

6,135

 

 

$

237

 

 

$

504

 

Interest cost

 

 

8,034

 

 

 

7,899

 

 

 

686

 

 

 

951

 

Expected return on plan assets

 

 

(7,662

)

 

 

(10,575

)

 

 

 

 

 

 

Amortization of prior service cost (credit)

 

 

55

 

 

 

63

 

 

 

467

 

 

 

(894

)

Amortization of actuarial loss (gain)

 

 

4,252

 

 

 

10,877

 

 

 

(286

)

 

 

1,635

 

Net periodic cost before pension settlement charge

 

 

9,832

 

 

 

14,399

 

 

 

1,104

 

 

 

2,196

 

Pension settlement charge

 

 

14,165

 

 

 

 

 

 

 

 

 

 

Net periodic cost

 

$

23,997

 

 

$

14,399

 

 

$

1,104

 

 

$

2,196