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Defined Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Schedule of Costs of Retirement Plans The components of net periodic pension cost (income) are as follows (dollars in thousands):
 Three months ended September 30,Nine months ended September 30,
 2024202320242023
Service costs$140 $120 $400 $360 
Interest costs320 320 980 950 
Expected return on plan assets(510)(530)(1,530)(1,580)
Settlement and curtailment losses— — — 1,020 
Amortization of net loss50 20 140 90 
Net periodic benefit cost (income)$— $(70)$(10)$840