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Retirement Plans (Tables)
9 Months Ended
Sep. 30, 2024
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost

The components of net periodic benefit cost for the Company’s defined benefit plans were as follows (in thousands):

 

 

Pension Benefits

 

 

 

Pension Plans

 

 

SERP

 

 

 

Three Months Ended September 30,

 

 

Three Months Ended September 30,

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Components of net periodic benefit cost:

 

 

 

 

 

 

 

 

 

 

 

 

Service cost

 

$

850

 

 

$

924

 

 

$

 

 

$

 

Interest cost

 

 

4,294

 

 

 

4,589

 

 

 

10

 

 

 

11

 

Expected return on plan assets

 

 

(6,221

)

 

 

(5,727

)

 

 

 

 

 

 

Amortization of actuarial (gain) loss

 

 

(584

)

 

 

 

 

 

8

 

 

 

6

 

Net periodic benefit cost

 

$

(1,661

)

 

$

(214

)

 

$

18

 

 

$

17

 

 

 

 

Pension Benefits

 

 

 

Pension Plans

 

 

SERP

 

 

 

Nine Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Components of net periodic benefit cost:

 

 

 

 

 

 

 

 

 

 

 

 

Service cost

 

$

2,547

 

 

$

2,772

 

 

$

 

 

$

 

Interest cost

 

 

12,884

 

 

 

13,767

 

 

 

29

 

 

 

32

 

Expected return on plan assets

 

 

(18,663

)

 

 

(17,182

)

 

 

 

 

 

 

Amortization of actuarial (gain) loss

 

 

(1,748

)

 

 

 

 

 

24

 

 

 

18

 

Net periodic benefit cost

 

$

(4,980

)

 

$

(643

)

 

$

53

 

 

$

50

 

Other Postretirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost

The components of net periodic benefit cost for the Company’s postretirement benefit plan were as follows (in thousands):

 

 

 

Other Postretirement Benefits

 

 

 

Postretirement Welfare Plan

 

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Components of net periodic benefit cost:

 

 

 

 

 

 

 

 

 

 

 

 

Interest cost

 

$

5

 

 

$

6

 

 

$

15

 

 

$

17

 

Amortization of actuarial gain

 

 

(70

)

 

 

(86

)

 

 

(210

)

 

 

(258

)

Net periodic benefit cost

 

$

(65

)

 

$

(80

)

 

$

(195

)

 

$

(241

)