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Employee Benefit Plans
 9 Months Ended
Sep. 30, 2023
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]  
Employee Benefit Plans Employee Benefit Plans
The components of net periodic benefit cost (income) related to our employee benefit plans are as follows (in thousands):
 Three Months Ended September 30,
Retirement PlanAcquired Retirement PlanRestoration Plan
202320222023202220232022
Interest cost$942 $685 $31 $25 $208 $144 
Expected return on assets(1,143)(1,461)(47)(58)— — 
Net loss amortization182 160 — — 7 64 
Net periodic benefit cost (income)$(19)$(616)$(16)$(33)$215 $208 
Nine Months Ended September 30,
Retirement PlanAcquired Retirement PlanRestoration Plan
202320222023202220232022
Interest cost$2,828 $2,056 $94 $76 $623 $433 
Expected return on assets(3,430)(4,384)(140)(174)— — 
Net loss amortization545 480 — — 22 191 
Net periodic benefit cost (income)$(57)$(1,848)$(46)$(98)$645 $624 
The noncash adjustment to the employee benefit plan liabilities, consisting of changes in net loss, was $567,000 and $671,000 for the nine months ended September 30, 2023 and 2022, respectively.