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Intangible Assets
 3 Months Ended
Mar. 31, 2016
Finite-Lived Intangible Assets, Net [Abstract]  
Intangible Assets
Intangible Assets
Intangible assets at the balance sheet dates are comprised of the following:

 
March 31, 2016
(Dollars in thousands, lives in years)
Useful
Life
 
Historical
Cost
 
Accumulated
Amortization
 
Net
Balance
Customer relationships
9.0
 
$
41,001

 
$
(23,917
)
 
$
17,084

Trade names and trademarks
10.0
 
3,286

 
(1,725
)
 
1,561

Non-compete agreements
5.0
 
574

 
(466
)
 
108

 
 
 
$
44,861

 
$
(26,108
)
 
$
18,753

 
 
 
 
 
 
 
 
  
December 31, 2015
(Dollars in thousands, lives in years)
Useful
Life
 
Historical
Cost
 
Accumulated
Amortization
 
Net
Balance
Customer relationships
9.0
 
$
41,001

 
$
(22,778
)
 
$
18,223

Trade names and trademarks
10.0
 
3,286

 
(1,643
)
 
1,643

Non-compete agreements
5.0
 
574

 
(450
)
 
124

 
 
 
$
44,861

 
$
(24,871
)
 
$
19,990