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Commitments (Tables)
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule Of Lease Commitments Under Non-Cancelable Operating Leases
 
(Dollars in thousands)
2019
$
4,474

2020
2,747

2021
1,497

2022
334

2023
269

2024 and thereafter
343