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Goodwill And Other Intangible Assets
3 Months Ended
Mar. 31, 2014
Deferred Tax Liabilities, Goodwill and Intangible Assets [Abstract]  
Goodwill And Other Intangible Assets
Goodwill and Other Intangible Assets
We are required to review goodwill and indefinite-lived intangible assets annually for impairment. Goodwill impairment is tested at the reporting unit level on an annual basis and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value.
Our annual impairment test of goodwill was performed as of December 31, 2013. The estimated fair values of our reporting units were based on discounted cash flow models derived from internal earnings forecasts and assumptions. The assumptions and estimates used in these valuations incorporated the current and expected economic environment. Our model was based on our internally developed forecast and based on these valuations, the fair value substantially exceeded our net asset value. In addition to the quantitative analysis, we qualitatively assessed our reporting units and we believe that the quantitative analysis supporting the fair value in excess of the carrying value is appropriate. However, a further deterioration in the global economic environments or in any of the input assumptions in our calculation could adversely affect the fair value of our reporting units and result in an impairment of some or all of the goodwill on the balance sheet.
The changes in the carrying value of goodwill during the three months ended March 31, 2014 are as follows:
 
Total
 
(Dollars in
Thousands)
Balance as of December 31, 2013
$
496,810

Currency translation effect
(9
)
Balance as of March 31, 2014
$
496,801


The following table summarizes acquired intangible assets with determinable useful lives by major category as of December 31, 2013 and March 31, 2014:
 
As of December 31, 2013
 
As of March 31, 2014
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Amount
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Amount
 
(Dollars in Thousands)
Trade name
7,900

 
(3,944
)
 
3,956

 
7,900

 
(4,163
)
 
3,737

Technological know-how
43,349

 
(18,582
)
 
24,767

 
43,349

 
(20,089
)
 
23,260

Customer –related
    intangible
110,798

 
(44,664
)
 
66,134

 
110,798

 
(47,691
)
 
63,107

Total finite-lived
    intangible assets
$
162,047

 
$
(67,190
)
 
$
94,857

 
$
162,047

 
$
(71,943
)
 
$
90,104


Amortization expense of acquired intangible assets was $5.2 million and $4.8 million in the three months ended March 31, 2013 and March 31, 2014, respectively. Estimated amortization expense will approximate $14.3 million in the remainder of 2014, $17.3 million in 2015, $13.2 million in 2016, $14.4 million in 2017 and $10.7 million in 2018.