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Pension Plan
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Pension Plan Pension Plan
Net periodic pension cost consists of the following: 

Three Months Ended March 31,
 20242023
Service cost$180 $194 
Interest cost on projected benefit obligation863 911 
Expected return on plan assets(1,101)(1,032)
Net amortization and deferral398 532 
Net periodic pension cost$340 $605 
 
We do not expect to make any pension contributions during 2024. Non-service pension cost was immaterial for the three months ended March 31, 2024 and 2023.