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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2017
Property and Equipment [Abstract]  
Components of property and equipment
    
December 31,
(dollars in thousands)     2017     2016
Land        $6,8276,827
Buildings23,99014,833
Leasehold Improvements2,2202,020
Furniture and equipment8,0757,410
Software306421
Construction in process406,225
41,45837,736
Accumulated depreciation(9,224)(9,374)
Total property and equipment$32,234        28,362
Schedule of estimated useful lives of property and equipment
   
Type of Asset     Life in Years
Software3
Furniture and equipmentto 7
Leasehold improvementsto 15
Buildings40