Quarterly report pursuant to Section 13 or 15(d)

Employee Retirement Plans (Tables)

v3.20.2
Employee Retirement Plans (Tables)
9 Months Ended
Sep. 30, 2020
Pension plan  
Employee retirement plans  
Schedule of components of net periodic pension or other postretirement benefit cost

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Three Months Ended

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Nine Months Ended

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September 30,

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September 30,

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2019

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2019

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Component of net periodic pension cost:

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​

​

​

​

​

Service cost

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$

-

​

$

-

Interest cost

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​

​

410

​

​

1,230

Expected return on plan assets

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​

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(294)

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(882)

Amortization of net loss

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​

​

149

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​

447

Net periodic pension cost

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​

$

265

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$

795

Other postretirement benefit cost  
Employee retirement plans  
Schedule of components of net periodic pension or other postretirement benefit cost

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Three Months Ended

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Nine Months Ended

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September 30,

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September 30,

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September 30,

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September 30,

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2020

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2019

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2020

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2019

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Component of periodic other postretirement benefit cost:

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​

​

​

​

​

​

​

​

​

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​

Service cost

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$

37

​

$

37

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$

111

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$

111

Interest cost

​

​

47

​

​

63

​

​

141

​

​

189

Amortization of net gain

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(77)

​

​

(78)

​

​

(231)

​

​

(234)

Net periodic other postretirement benefit cost

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$

7

​

$

22

​

$

21

​

$

66