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Employee Benefit Plans
 6 Months Ended
Jun. 30, 2022
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 June 30,
Retirement PlanAcquired Retirement PlanRestoration
Plan
202220212022202120222021
Interest cost$691 $657 $25 $22 $150 $139 
Expected return on assets(1,462)(1,273)(57)(47)— — 
Net loss amortization169 (19)— — 72 10 
Net periodic benefit cost (income)$(602)$(635)$(32)$(25)$222 $149 
Six Months Ended June 30,
Defined Benefit
Pension Plan		Defined Benefit
Pension Plan Acquired		Restoration
Plan
202220212022202120222021
Interest cost$1,371 $1,285 $51 $46 $289 $260 
Expected return on assets(2,923)(2,710)(116)(105)— — 
Net loss amortization320 501 — 3 127 128 
Net periodic benefit cost (income)$(1,232)$(924)$(65)$(56)$416 $388 

During the three months ended June 30, 2021, we updated our expected long-term rate of return on plan assets for the Retirement Plan and the Acquired Retirement Plan from 6.50% to 6.125%.
The noncash adjustment to the employee benefit plan liabilities, consisting of changes in net loss, was $447,000 and $632,000 for the six months ended June 30, 2022 and 2021, respectively.