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Goodwill And Intangible Assets
9 Months Ended
Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill And Intangible Assets
Goodwill and Intangible Assets

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. Intangible assets resulting from the acquisitions of entities accounted for using the purchase method of accounting are recorded at the estimated fair value of the assets acquired. Identifiable intangible assets are comprised of purchased customer relationships, trademarks and trade names, developed technologies and other intangible assets. The fair values of these identified intangible assets are based upon expected future cash flows or income, which take into consideration certain assumptions such as customer turnover, trade names and patent lives. These determinations are primarily based upon the Company’s historical experience and expected benefit of each intangible asset. If it is determined that such assumptions are not accurate, then the resulting change will impact the fair value of the intangible asset. Identifiable intangible assets are amortized using the straight-line method over estimated useful lives ranging from one to 20 years.

The changes in carrying amounts of goodwill for the nine months ended September 30, 2012 are as follows (in thousands):

Balance as of January 1, 2012
$
279,016

Goodwill acquired
14,896

Purchase Accounting Adjustments
(300
)
Foreign exchange translation
75

Balance as of September 30, 2012
$
293,687



Intangible assets are summarized as of September 30, 2012 and December 31, 2011 as follows (in thousands):

Intangible assets with indefinite lives:

 
September 30,
2012
 
December 31,
2011
Trade name
$
27,379

 
$
28,254

Other
5,436

 
5,317

Total
$
32,815

 
$
33,571


The Company determined that a certain trade name no longer has an indefinite life as of the second quarter 2012.  Accordingly, the Company has reclassified $0.9 million from intangible assets with indefinite lives to intangible assets subject to amortization during fiscal year 2012.  The Company has determined that this intangible asset has a remaining useful life of 1.5 years and it will be amortized accordingly.

As of September 30, 2012, intangible assets subject to amortization relate primarily to the following (in thousands):
 
 
Weighted-Average
  Amortization
Period
 
Historical
Cost
 
Accumulated
Amortization
 
Net
Tradenames
10.9 years
 
$
12,520

 
$
(5,502
)
 
$
7,018

Patent and patent licenses
9.1 years
 
42,014

 
(23,593
)
 
18,421

Customer relationships
6.6 years
 
58,962

 
(19,174
)
 
39,788

Other purchased intangibles
4.8 years
 
11,759

 
(8,241
)
 
3,518

Total
 
 
$
125,255

 
$
(56,510
)
 
$
68,745


As of December 31, 2011, intangible assets subject to amortization relate primarily to the following (in thousands):

 
Weighted-Average
  Amortization
Period
 
Historical
Cost
 
Accumulated
Amortization
 
Net
Tradenames
12.6 years
 
$
10,584

 
$
(4,147
)
 
$
6,437

Patent and patent licenses
8.4 years
 
38,229

 
(20,712
)
 
17,517

Customer relationships
6.7 years
 
49,245

 
(13,380
)
 
35,865

Other purchased intangibles
4.7 years
 
11,545

 
(6,868
)
 
4,677

Total
 
 
$
109,603

 
$
(45,107
)
 
$
64,496



Amortization expense, included in general and administrative expense, approximated $3.9 million and $3.4 million for the three month period ended September 30, 2012 and 2011, respectively, and $11.0 million and $10.1 million for the nine month period ended September 30, 2012 and 2011, respectively.  Amortization expense is estimated to approximate $14.9 million, $15.3 million, $13.5 million, $12.3 million and $10.8 million for fiscal years 2012 through 2016, respectively, and $12.9 million thereafter through the duration of the amortization period.