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Pension Plans And Other Post-Retirement Benefits (Tables)
12 Months Ended
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]  
Schedule Of Benefit Payments Of Expected Future Service

Pension Benefits

Other Post-retirement Benefits

Years:

2023

$

27,351

$

5,498

2024

27,154

5,464

2025

27,723

5,636

2026

27,497

5,965

2027

29,007

6,252

2028-2032

129,413

32,750

Schedule Of Changes In Benefit Obligation And Fair Value Of Plan Assets

Pension Benefits

Other Post-retirement Benefits

2022

2021

2022

2021

Change in benefit obligation:

Benefit obligation at January 1,

$

452,947 

$

486,219 

$

114,651 

$

125,375 

Service cost

2,587 

3,503 

1,911 

2,793 

Interest cost

13,806 

13,018 

3,369 

3,358 

Actuarial loss/(gain)

(105,107)

(17,378)

(31,995)

(12,001)

Plan participants' contributions

-

-

145 

36 

Benefits paid

(19,339)

(32,415)

(4,580)

(4,910)

Plan amendments

2,121 

-

-

-

Participants' directed transfer of benefit to other plans

(4,568)

-

-

-

Settlements

(17,757)

-

-

-

Benefit obligation at December 31,

324,690 

452,947 

83,501 

114,651 

Change in plan assets:

Fair value of plan assets at January 1,

433,121 

426,801 

107,308 

98,995 

Actual return on plan assets

(83,297)

23,901 

(19,589)

12,484 

Employer contributions

20,390 

14,834 

1,636 

598 

Participants' contributions

-

-

145 

36 

Benefits paid

(19,281)

(32,415)

(3,506)

(4,805)

Settlements

(17,757)

-

-

-

Fair value of plan assets at December 31,

333,176 

433,121 

85,994 

107,308 

Funded status of plan:

Net asset / (liability) recognized at December 31,

$

8,486 

$

(19,826)

$

2,493 

$

(7,343)

Schedule Of Net Liability Recognized On Consolidated Balance Sheets

Pension Benefits

Other Post-retirement Benefits

2022

2021

2022

2021

Non-current asset

$

24,389

$

2,474

$

19,438

$

23,504

Current liability

(761)

(1,144)

(843)

(1,777)

Noncurrent liability

(15,142)

(21,156)

(16,102)

(29,070)

Net asset / (liability) recognized

$

8,486

$

(19,826)

$

2,493

$

(7,343)

Schedule Of Accumulated And Projected Benefit Obligations

December 31,

December 31,

2022

2021

Pension Benefits

Other
Post-retirement Benefits

Pension Benefits

Other
Post-retirement Benefits

Selected information for plans with projected benefit obligation in excess of plan assets:

Projected benefit obligation

$

16,041

$

N/A

$

23,601

$

N/A

Fair value of plan assets

-

N/A

-

N/A

Selected information for plans with accumulated benefit obligation in excess of plan assets:

Accumulated benefit obligation

$

12,126

$

29,009

$

17,129

$

42,463

Fair value of plan assets

-

12,064

-

11,616

Components Of Net Periodic Benefit Costs

Pension Benefits

Other Post-retirement Benefits

2022

2021

2020

2022

2021

2020

Service cost

$

2,587

$

3,503

$

3,775

$

1,911

$

2,793

$

2,276

Interest cost

13,806

13,018

13,710

3,369

3,358

3,687

Expected return on plan assets

(22,004)

(23,165)

(21,249)

(4,502)

(4,155)

(4,079)

Amortization of prior service cost (credit)

536

559

591

-

(432)

(464)

Amortization of actuarial loss (gain)

2,043

2,907

7,967

(1,336)

219

622

Net periodic benefit cost (credit)

$

(3,032)

$

(3,178)

$

4,794

$

(558)

$

1,783

$

2,042

Schedule Of Net Periodic Benefit Cost Not Yet Recognized

Pension Benefits

Other Post-retirement Benefits

2022

2021

2022

2021

Net actuarial loss (gain)

$

56,737

$

64,247

$

(19,894)

$

(16,323)

Prior service cost

2,550

965

-

-

Total recognized in regulatory assets

$

59,287

$

65,212

$

(19,894)

$

(16,323)

Schedule Of Assumptions Related To Pension And Other Postretirement benefit Plans

The significant assumptions related to the Company’s benefit obligations are as follows:

Pension Benefits

Other Post-retirement Benefits

2022

2021

2022

2021

Weighted Average Assumptions Used to Determine Benefit Obligations as of December 31,

Discount rate

5.51%

2.91%

5.45%

2.96%

Rate of compensation increase

3.0-4.0%

3.0-4.0%

n/a

n/a

Assumed Health Care Cost Trend Rates Used to Determine Benefit Obligations as of December 31,

Health care cost trend rate

n/a

n/a

6.50%

6.25%

Rate to which the cost trend is assumed to decline (the ultimate trend rate)

n/a

n/a

5.0%

5.0%

Year that the rate reaches the ultimate trend rate

n/a

n/a

2029

2027

n/a – Assumption is not applicable.

The significant assumptions related to the Company’s net periodic benefit costs are as follows:

Pension Benefits

Other Post-retirement Benefits

2022

2021

2020

2022

2021

2020

Weighted Average Assumptions Used to Determine Net Periodic Benefit Costs for Years Ended December 31,

Discount rate

2.91%

2.57%

3.35%

2.96%

2.68%

3.42%

Expected return on plan assets

5.40%

5.60%

6.00%

3.4%-5.4%

5.60%

6.00%

Rate of compensation increase

3.0-4.0%

3.0-4.0%

3.0-4.0%

n/a

n/a

n/a

Assumed Health Care Cost Trend Rates Used to Determine Net Periodic Benefit Costs for Years Ended December 31,

Health care cost trend rate

n/a

n/a

n/a

6.25%

6.3%

6.3%

Rate to which the cost trend is assumed to decline (the ultimate trend rate)

n/a

n/a

n/a

5.0%

5.0%

5.0%

Year that the rate reaches the ultimate trend rate

n/a

n/a

n/a

2027

2025

2025

n/a – Assumption is not applicable.

* In September 2022, the Company remeasured its qualified pension plan assets and liabilities in accordance with settlement accounting rules. The discount rate used for the remeasurement and for the calculation of the net periodic benefit cost for the remainder of the year was 5.58%.

Pension Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Schedule Of Fair Value Of Plan Assets The fair value of the Company’s pension plans’ assets at December 31, 2022 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Common stock

$

18,037

$

-

$

-

$

-

$

18,037

Return seeking assets:

Global equities

-

-

-

15,163

15,163

Hedge / diversifying strategies

-

-

-

102,038

102,038

Credit

-

-

-

52,048

52,048

Liability hedging assets

-

-

-

114,220

114,220

Cash and cash equivalents

31,670

-

-

-

31,670

Total pension assets

$

49,707

$

-

$

-

$

283,469

$

333,176

(a)Assets that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy.

The fair value of the Company’s pension plans’ assets at December 31, 2021 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Common stock

$

20,290

$

-

$

-

$

-

$

20,290

Return seeking assets:

Global equities

-

-

-

134,394

134,394

Hedge / diversifying strategies

-

-

-

39,163

39,163

Credit

-

-

-

56,191

56,191

Liability hedging assets

-

-

-

177,574

177,574

Cash and cash equivalents

5,509

-

-

-

5,509

Total pension assets

$

25,799

$

-

$

-

$

407,322

$

433,121

Schedule Of Target Asset Allocations

Percentage of Plan Assets at December 31,

Target Allocation

2022

2021

Return seeking assets

50 to 70%

56%

53%

Liability hedging assets

30 to 50%

44%

47%

Total

100%

100%

100%

Other Postretirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Schedule Of Fair Value Of Plan Assets The fair value of the Company’s other post-retirement benefit plans’ assets at December 31, 2022 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Return seeking assets:

Global equities

$

27,258

$

-

$

-

$

16,024

$

43,282

Real estate securities

6,386

-

-

3,311

9,697

Liability hedging assets

15,131

-

-

9,159

24,290

Cash and cash equivalents

8,725

-

-

-

8,725

Total other post-retirement assets

$

57,500

$

-

$

-

$

28,494

$

85,994

(a)Assets that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy.

The fair value of the Company’s other post-retirement benefit plans’ assets at December 31, 2021 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Return seeking assets:

Global equities

$

36,753

$

-

$

-

$

22,544

$

59,297

Real estate securities

9,609

-

-

4,391

14,000

Liability hedging assets

17,241

-

-

12,364

29,605

Cash and cash equivalents

4,406

-

-

-

4,406

Total other post-retirement assets

$

68,009

$

-

$

-

$

39,299

$

107,308

Schedule Of Target Asset Allocations

Percentage of Plan Assets at December 31,

Target Allocation

2022

2021

Return seeking assets

50 to 70%

62%

68%

Liability hedging assets

30 to 50%

38%

32%

Total

100%

100%

100%