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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Gross carrying amount and accumulated amortization for each class of intangible assets and goodwill
The following table provides the gross carrying amount and accumulated amortization for each class of intangible assets:

 
 
December 31,
 
 
2013
 
2012
 
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
 
(in thousands)
Amortizable intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
Trademarks
 
$
1,230

 
$
(680
)
 
$
550

 
$
1,285

 
$
(571
)
 
$
714

Customer relationships
 
7,784

 
(4,340
)
 
3,444

 
9,643

 
(3,790
)
 
5,853

Total intangible assets
 
$
9,014

 
$
(5,020
)
 
$
3,994

 
$
10,928

 
$
(4,361
)
 
$
6,567
Summary of changes in carrying amount of goodwill
The following table provides the gross carrying amount and accumulated impairment for goodwill:

 
 
Year ended December 31,
 
 
2013
 
2012
 
 
(in thousands)
Gross amount:
 
 
 
 
Aggregate goodwill acquired
 
$
21,156

 
$
21,156

Accumulated impairment loss:
 
 
 
 
Beginning balance
 
(3,948
)
 
—

Impairment
 
(2,768
)
 
(3,948
)
Ending balance
 
(6,716
)
 
(3,948
)
Goodwill, net
 
$
14,440

 
$
17,208