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Pension Plan
 3 Months Ended
Mar. 31, 2023
Retirement Benefits [Abstract]  
Pension Plan Pension Plan
Net periodic pension cost consists of the following: 

Three Months Ended March 31,
 20232022
Service cost$194 $269 
Interest cost on projected benefit obligation911 537 
Expected return on plan assets(1,032)(1,324)
Net amortization and deferral532 648 
Net periodic pension cost$605 $130 
 
We do not expect to make any pension contributions during 2023. Non-service pension cost/(benefit) was immaterial for the three months ended March 31, 2023 and 2022.