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Retirement Benefits
 3 Months Ended
Mar. 31, 2025
Postemployment Benefits [Abstract]  
Retirement Benefits Defined Benefit Pension Plan
 
The components of net periodic benefit income related to the non-contributory, defined benefit pension plan were as follows:
 Three Months Ended March 31,
(In thousands)20252024
Service cost$91 $107 
Interest cost399 374 
Expected return on plan assets(685)(712)
Amortization of net loss— 19 
Net Periodic Benefit Income$(195)$(212)
 
The Corporation has determined that it will not be contributing to the defined benefit plan in 2025 based on current levels and expected returns on plan assets. Effective April 1, 2012, no inactive or former participant in the plan is eligible to again participate in the plan, and no employee hired after March 31, 2012, is eligible to participate in the plan.