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Employee benefit plans (Tables)
9 Months Ended
Sep. 30, 2022
Employee benefit plans  
Components of Net Periodic Defined Benefit Cost (Income)

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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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2021

    

2022

    

2021

    

2022

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(In thousands)

Interest cost

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$

279

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$

297

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$

711

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$

891

Expected return on plan assets

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(398)

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(392)

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(1,194)

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(1,176)

Recognized actuarial losses

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376

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373

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1,128

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1,119

Total

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$

257

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$

278

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$

645

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$

834