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Employee benefit plans (Tables)
3 Months Ended
Mar. 31, 2019
Employee benefit plans  
Schedule of components of net periodic benefit cost

 

 

 

 

 

 

 

 

 

 

 

 

 

Pension Benefits

Three Months Ended March 31, 

    

2019

    

2018

Components of net periodic pension cost:

    

 

 

    

 

 

Interest cost

 

$

128

 

$

 

Expected return on plan assets

 

 

(217)

 

 

 

Amortization of unrecognized net gain

 

 

45

 

 

 

Net periodic benefit cost

 

$

(44)

 

$