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Defined Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2025
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Schedule of Costs of Retirement Plans The components of net periodic benefit cost (income) are as follows (dollars in thousands):
 Three months ended September 30, Nine months ended September 30,
 2025202420252024
Service costs$140 $140 $410 $400 
Interest costs310 320 950 980 
Expected return on plan assets(250)(510)(760)(1,530)
Amortization of net loss30 50 80 140 
Net periodic benefit cost (income)$230 $— $680 $(10)