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Employee Pension Plans
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Employee Pension Plans Employee Pension Plans
The Company has a defined benefit pension plan and an unfunded supplemental retirement plan. Effective June 1, 2004, all benefit accruals under these plans were frozen; however, the current vested benefit was preserved. The pension disclosure presented below includes aggregated amounts for both of the Company’s plans.
The following table sets forth a summary of the net periodic benefit cost for the three months ended March 31, 2024 and 2023:
Three Months Ended March 31,
(in thousands)20242023
Interest cost$911 $969 
Service cost231 255 
Expected return on plan assets(944)(978)
Recognized net actuarial losses437 413 
Net periodic benefit cost$635 $659 
The Company contributed $0.7 million to its defined benefit pension plan during the three months ended March 31, 2024. The Company expects to contribute an additional $1.8 million in cash by the end of 2024. Due to availability of our prefunded pension balance related to the defined benefit pension plan, the Company was not required to make any cash payments during the three months ended March 31, 2023.