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Pension Benefits (Tables)
3 Months Ended
Mar. 31, 2020
Pension Benefits  
Summary of pension costs

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Three Months Ended

(Amounts in thousands)

    

March 31, 2020

    

March 31, 2019

Service cost

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$

325

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$

338

Interest cost

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1,623

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2,002

Expected return on plan assets

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(3,279)

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(3,330)

Amortization of net actuarial loss

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257

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191

Total net periodic benefit

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$

(1,074)

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$

(799)

Schedule of weighted average assumptions used to determine net cost

Weighted-Average Assumptions Used To Determine Net Cost

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Three Months Ended

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March 31, 2020

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March 31, 2019

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Discount rate

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3.00

%  

4.05

%

Rate of compensation increase

 

N/A

 

N/A

 

Expected return on plan assets

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6.50

%  

7.25

%