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

Three months ended

Six months ended

June 30, 

June 30, 

    

2021

    

2022

    

2021

    

2022

(In thousands)

Interest cost

$

279

$

297

$

432

$

594

Expected return on plan assets

(398)

(392)

(796)

(784)

Recognized actuarial losses

 

376

 

373

 

752

 

746

Total

$

257

$

278

$

388

$

556