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Employee Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2020
Retirement Benefits [Abstract]  
Schedule of net periodic cost
The components of net periodic cost of plans sponsored by us are as follows:
Three Months Ended June 30,Six Months Ended June 30,
2020201920202019
Service cost$ $ $14  $10  
Interest cost20  22  40  41  
Expected return on plan assets(31) (30) (62) (55) 
Amortization of net actuarial loss  16   
Curtailment loss—   —   
Net periodic cost$ $10  $ $12