Three Months Ended

Six Months Ended

June 30,

June 30,

(In thousands)

2022

2021

2022

2021

Pension Benefits

Components of net periodic benefit cost:

Service cost

$

1,195

$

1,442

$

2,532

$

2,864

Interest cost

2,784

2,288

5,580

4,560

Expected return on assets

(7,844

)

(7,368

)

(15,695

)

(14,743

)

Amortization of:

Prior service credit

(5

)

(31

)

(10

)

(62

)

Actuarial loss

484

1,743

1,208

3,323

Net periodic benefit (credit) cost

$

(3,386

)

$

(1,926

)

$

(6,385

)

$

(4,058

)

Postretirement Benefits

Components of net periodic benefit cost:

Service cost

$

314

$

373

$

647

$

724

Interest cost

479

390

970

774

Expected return on assets

(839

)

(821

)

(1,682

)

(1,638

)

Amortization of:

Transition obligation

—

1

1

1

Prior service credit

(75

)

(380

)

(149

)

(759

)

Actuarial loss

24

138

72

247

Net periodic benefit (credit) cost

$

(97

)

$

(299

)

$

(141

)

$

(651

)