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Goodwill and Other Intangible Assets
9 Months Ended
Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets
There were no changes in the carrying amount of goodwill for the nine months ended September 30, 2012. Goodwill is reviewed for impairment on an annual basis and more frequently if potential impairment indicators exist. No impairment indications were identified during any of the periods presented.
The following table presents the components of other intangible assets as of September 30, 2012 and December 31, 2011.
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Amount
 
Useful Lives
 
(Amounts in thousands)
 
(in years)
As of September 30, 2012:
 
 
 
 
 
 
 
Customer relationships
$
51,755

 
$
(18,358
)
 
$
33,397

 
11
Trade names
15,400

 
(2,406
)
 
12,994

 
24
Software
550

 
(550
)
 
0

 
2
Technology
4,300

 
(1,612
)
 
2,688

 
10
Favorable leases
1,725

 
(1,699
)
 
26

 
3
Total intangible assets, net
$
73,730

 
$
(24,625
)
 
$
49,105

 
 
As of December 31, 2011:
 
 
 
 
 
 
 
Customer relationships
$
51,755

 
$
(14,676
)
 
$
37,079

 
11
Trade names
15,400

 
(1,925
)
 
13,475

 
24
Software
550

 
(550
)
 
0

 
2
Technology
4,300

 
(1,290
)
 
3,010

 
10
Favorable leases
1,725

 
(1,540
)
 
185

 
3
Total intangible assets, net
$
73,730

 
$
(19,981
)
 
$
53,749

 
 

Intangible assets are amortized on a straight-line basis over their useful lives. Intangible assets amortization expense was $1.5 million and $1.6 million for the three months ended September 30, 2012 and 2011, respectively, and $4.6 million and $4.8 million for the nine months ended September 30, 2012 and 2011, respectively. The following table presents the estimated future amortization expense related to intangible assets as of September 30, 2012:
 
Year Ending
 
Amortization Expense
 
 
(Amounts in thousands)
Remainder of 2012
 
$
1,516

2013
 
5,986

2014
 
5,980

2015
 
5,980

2016
 
5,980

Thereafter
 
23,663

Total
 
$
49,105