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Goodwill And Intangible Assets
6 Months Ended
Jun. 30, 2013
Goodwill And Intangible Assets [Abstract]  
Goodwill And Intangible Assets
8. Goodwill and Intangible Assets
 
Goodwill represents the excess purchase price over the fair value of net assets acquired, or net liabilities assumed, in a business combination. In accordance with ASC Topic 350, Intangibles – Goodwill and Other, the Company performs an annual impairment test of goodwill. The Company evaluates goodwill as of October 1 each year and more frequently if events or changes in circumstances indicate that goodwill might be impaired.  

Other intangible assets include customer relationships, non-compete arrangements, trade names, and internally developed software, which are being amortized over the assets' estimated useful lives using the straight-line method. Estimated useful lives range from five months to eight years. Amortization of customer relationships, non-compete arrangements, trade names, and internally developed software is considered an operating expense and is included in "Amortization" in the accompanying Condensed Consolidated Statements of Operations. The Company periodically reviews the estimated useful lives of its identifiable intangible assets, taking into consideration any events or circumstances that might result in a lack of recoverability or revised useful life.  

Goodwill
 
The changes in the carrying amount of goodwill for the six months ended June 30, 2013 are as follows (in thousands):

Balance at December 31, 2012
 
$
160,936
 
Preliminary purchase price allocations for acquisitions (Note 7)
  
13,704
 
Purchase accounting adjustments
  
533
 
Balance at June 30, 2013
 
$
175,173
 

Intangible Assets with Definite Lives

The following table presents a summary of the Company's intangible assets that are subject to amortization (in thousands):

 
 
June 30, 2013
  
December 31, 2012
 
 
 
Gross
Carrying
Amounts
  
Accumulated
Amortization
  
Net
Carrying
Amounts
  
Gross
Carrying
Amounts
  
Accumulated
Amortization
  
Net
Carrying
Amounts
 
Customer relationships
 
$
26,913
  
$
(7,847
)
 
$
19,066
  
$
22,682
  
$
(7,299
)
 
$
15,383
 
Non-compete agreements
  
1,400
   
(557
)
  
843
   
1,156
   
(425
)
  
731
 
Customer backlog
  
685
   
(185
)
  
500
   
306
   
(184
)
  
122
 
Trade name
  
114
   
(17
)
  
97
   
265
   
(204
)
  
61
 
Internally developed software
  
2,584
   
(703
)
  
1,881
   
1,642
   
(589
)
  
1,053
 
Total
 
$
31,696
  
$
(9,309
)
 
$
22,387
  
$
26,051
  
$
(8,701
)
 
$
17,350
 

The estimated useful lives of identifiable intangible assets are as follows:
 
       Customer relationships
2 – 8 years
       Non-compete agreements
1 – 5 years
       Internally developed software
1 – 7 years
       Trade name
1  year
       Customer Backlog
5 – 8 months