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Retirement Plans (Tables)
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Summary of Components of Net Periodic Pension Cost The following table summarizes the components of net periodic pension cost for the three months ended March 31, 2024 and March 31, 2023.

 

 

 

Three Months Ended

 

 

 

March 31,
2024

 

 

March 31,
2023

 

(Dollars in thousands)

 

 

 

 

 

 

Interest cost

 

$

290

 

 

$

304

 

Net amortization

 

 

1

 

 

 

—

 

Net periodic pension cost

 

$

291

 

 

$

304