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Pension Plans And Other Post-Retirement Benefits (Tables)
12 Months Ended
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]  
Schedule Of Benefit Payments Of Expected Future Service

Pension Benefits

Other Post-retirement Benefits

Years:

2020

$

20,468 

$

2,437 

2021

20,330 

2,640 

2022

20,911 

2,880 

2023

21,121 

3,133 

2024

20,583 

3,312 

2025-2029

106,028 

19,517 

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

Pension Benefits

Other Post-retirement Benefits

2019

2018

2019

2018

Change in benefit obligation:

Benefit obligation at January 1,

$

281,964 

$

320,979 

$

69,443 

$

75,960 

Service cost

2,718 

3,249 

819 

1,049 

Interest cost

11,817 

11,495 

2,999 

2,831 

Actuarial (gain)/loss

36,885 

(23,080)

7,238 

(8,970)

Plan participants' contributions

-

-

145 

127 

Benefits paid

(23,003)

(30,679)

(1,102)

(1,554)

Benefit obligation at December 31,

310,381 

281,964 

79,542 

69,443 

Change in plan assets:

Fair value of plan assets at January 1,

239,007 

270,353 

45,422 

47,750 

Actual return on plan assets

41,955 

(16,852)

9,436 

(2,599)

Employer contributions

8,502 

16,185 

-

1,636 

Benefits paid

(23,003)

(30,679)

(847)

(1,365)

Fair value of plan assets at December 31,

266,461 

239,007 

54,011 

45,422 

Funded status of plan:

Net liability recognized at December 31,

$

43,920 

$

42,957 

$

25,531 

$

24,021 

Schedule Of Net Liability Recognized On Consolidated Balance Sheets

Pension Benefits

Other Post-retirement Benefits

2019

2018

2019

2018

Current liability

$

403

$

267

$

-

$

-

Noncurrent liability

43,517

42,690

25,531

24,021

Net liability recognized

$

43,920

$

42,957

$

25,531

$

24,021

Schedule Of Accumulated And Projected Benefit Obligations

Projected Benefit Obligation Exceeds the Fair Value of Plan Assets

2019

2018

Projected benefit obligation

$

310,381 

$

281,964 

Fair value of plan assets

266,461 

239,007 

Accumulated Benefit Obligation Exceeds the Fair Value of Plan Assets

2019

2018

Accumulated benefit obligation

$

290,522 

$

264,876 

Fair value of plan assets

266,461 

239,007 

Components Of Net Periodic Benefit Costs

Pension Benefits

Other Post-retirement Benefits

2019

2018

2017

2019

2018

2017

Service cost

$

2,718 

$

3,249 

$

3,174 

$

819 

$

1,049 

$

1,020 

Interest cost

11,817 

11,495 

12,434 

2,999 

2,831 

2,947 

Expected return on plan assets

(15,272)

(18,211)

(17,077)

(2,482)

(2,706)

(2,589)

Amortization of prior service cost (credit)

620 

527 

579 

(464)

(509)

(509)

Amortization of actuarial loss

7,927 

7,291 

8,003 

664 

1,182 

1,165 

Settlement loss

-

5,931 

-

-

-

-

Net periodic benefit cost

$

7,810 

$

10,282 

$

7,113 

$

1,536 

$

1,847 

$

2,034 

Schedule Of Net Periodic Benefit Cost Not Yet Recognized

Pension Benefits

Other Post-retirement Benefits

2019

2018

2019

2018

Net actuarial loss

$

87,786

$

85,510

$

10,496

$

10,876

Prior service cost (credit)

2,115

2,734

(896)

(1,360)

Total recognized in regulatory assets

$

89,901

$

88,244

$

9,600

$

9,516

Schedule Of Net Periodic Benefit Cost That Will Be Amortized

Pension Benefits

Other Post-retirement Benefits

Net actuarial loss

$

8,021

$

531

Prior service cost (credit)

591

(464)

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

2019

2018

2019

2018

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

Discount rate

3.35%

4.30%

3.42%

4.34%

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

6.25%

6.6%

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

2024

2022

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

2019

2018

2017

2019

2018

2017

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

Discount rate

4.30%

3.66%

4.13%

4.34%

3.73%

4.25%

Expected return on plan assets

6.50%

6.75%

7.00%

4.1-6.5%

4.25-6.75%

4.67-7.00%

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

6.6%

7.0%

6.6%

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

2023

2023

2021

n/a – Assumption is not applicable.

Schedule Of Effect Of One-Percentage-Point Change In Assumed Health Care Cost Trend Rates

1-Percentage-Point Increase

1-Percentage-Point Decrease

Effect on the health-care component of the accrued other post-retirement benefit obligation

$

5,131

$

(4,548)

Effect on aggregate service and interest cost components of net periodic post-retirement health-care benefit cost

$

301

$

(227)

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, 2019 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Common stock

$

17,166

$

-

$

-

$

-

$

17,166

Return seeking assets:

Global equities

-

-

-

51,408

51,408

Real estate securities

-

-

-

13,970

13,970

Hedge / diversifying strategies

-

-

-

38,099

38,099

Credit

-

-

-

27,847

27,847

Liability hedging assets

-

-

-

113,777

113,777

Cash and cash equivalents

4,194

-

-

-

4,194

Total pension assets

$

21,360

$

-

$

-

$

245,101

$

266,461

(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, 2018 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Common stock

$

12,268

$

-

$

-

$

-

$

12,268

Return seeking assets:

Global equities

-

-

-

48,040

48,040

Real estate securities

-

-

-

15,766

15,766

Hedge / diversifying strategies

-

-

-

37,591

37,591

Credit

-

-

-

25,772

25,772

Liability hedging assets

-

-

-

97,756

97,756

Cash and cash equivalents

1,814

-

-

1,814

Total pension assets

$

14,082

$

-

$

-

$

224,925

$

239,007

Schedule Of Target Asset Allocations

Percentage of Plan Assets at December 31,

Target Allocation

2019

2018

Return seeking assets

50 to 70%

56%

58%

Liability hedging assets

30 to 50%

44%

42%

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, 2019 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Return seeking assets:

Global equities

$

10,795

$

-

$

-

$

17,781

$

28,576

Real estate securities

2,449

-

-

3,751

6,200

Liability hedging assets

5,685

-

-

9,984

15,669

Cash and cash equivalents

3,566

-

-

-

3,566

Total other post-retirement assets

$

22,495

$

-

$

-

$

31,516

$

54,011

(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, 2018 by asset class are as follows:

Level 1

Level 2

Level 3

Assets measured at NAV (a)

Total

Return seeking assets:

Global equities

$

8,411

$

-

$

-

$

13,882

$

22,293

Real estate securities

1,967

-

-

3,065

5,032

Liability hedging assets

5,075

-

-

8,806

13,881

Cash and cash equivalents

4,216

-

-

-

4,216

Total other post-retirement assets

$

19,669

$

-

$

-

$

25,753

$

45,422

Schedule Of Target Asset Allocations

Percentage of Plan Assets at December 31,

Target Allocation

2019

2018

Return seeking assets

50 to 70%

64%

60%

Liability hedging assets

30 to 50%

36%

40%

Total

100%

100%

100%