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Fixed Assets (Tables)
12 Months Ended
Dec. 31, 2016
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

 
December 31,
 
December 31,
(Dollars in thousands)
2016
 
2015
Furniture and equipment
$
37,712

 
$
31,953

Leasehold improvements
31,982

 
25,213

Software
13,957

 
13,692

Total
83,651

 
70,858

Accumulated depreciation and amortization
(58,308
)
 
(51,874
)
 
$
25,343

 
$
18,984