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Retirement Benefits (Tables)
6 Months Ended
Jun. 30, 2023
Postemployment Benefits [Abstract]  
Schedule of net periodic benefit expense (income)
The components of net periodic benefit income related to the non-contributory, defined benefit pension plan for the three and six month periods ended June 30 were as follows:
 Three Months Ended June 30, Six Months Ended June 30,
In thousands2023202220232022
Service cost$124 $194 $248 $388 
Interest cost373 263 746 526 
Expected return on plan assets(663)(784)(1,326)(1,568)
Amortization of net loss98 101 196 203 
Net Periodic Benefit Income$(68)$(226)$(136)$(451)