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Goodwill and Acquired Intangible Assets
9 Months Ended
Sep. 30, 2013
Goodwill and Acquired Intangible Assets
Goodwill and Long-lived Assets

Goodwill
The change in the carrying value of goodwill for the nine months ended September 30, 2013 by our reportable segments, which are also our reporting units, is as follows (in thousands):
 
Clear Aligner
 
SCCS
 
Total
Balance as of December 31, 2012
$
58,543

 
$
40,693

 
$
99,236

Goodwill from ICA acquisition
3,509

 

 
3,509

Impairment of goodwill

 
(40,693
)
 
(40,693
)
Adjustments 1
(307
)
 

 
(307
)
Balance as of September 30, 2013
$
61,745

 
$

 
$
61,745


1 The adjustments to goodwill during the nine months ended September 30, 2013 were due to foreign currency translation.
Impairment of Goodwill
We test our goodwill balances for impairment annually on November 30th or more frequently if indicators are present or circumstances change that suggest it is more likely than not that the fair value of the reporting unit is less than the carrying amount. During March 2013, changes in the competitive environment for intra-oral scanners, including announcements from our competitors of new low-priced scanners targeted at orthodontists and general practitioner dentists in North America, that caused us to lower our expectations for growth and profitability for our SCCS reporting unit. As a result, we determined that goodwill for our SCCS reporting unit should be tested for impairment as of March 2013 due to these facts and circumstances which would more likely than not reduce the fair value of our SCCS reporting unit below its carrying amount.
We performed a step one analysis for our SCCS reporting unit which consists of a comparison of the fair value of the SCCS reporting unit against its carrying amount, including the goodwill allocated to it. In deriving the fair value of the SCCS reporting unit, we utilized the income approach which is classified as Level 3 within the fair value hierarchy. This approach provides an estimated fair value based on discounted expected future cash flows, which are based on management's estimates of revenue growth rates and operating margins, taking into consideration industry and market conditions. The discount rate used is based on a weighted average cost of capital adjusted for the relevant risk associated with the characteristics of the business and the projected cash flows.
As a result of our step one analysis, we concluded that the fair value of the SCCS reporting unit was less than its carrying value; therefore, we proceeded to step two of the goodwill impairment analysis. Step two of the goodwill impairment analysis measures the impairment charge by allocating the reporting unit's fair value to all of the assets and liabilities of the reporting unit in a hypothetical analysis that calculates the implied fair value of goodwill in the same manner as if the reporting unit was being acquired in a business combination. This allocation process was performed only for the purposes of measuring the goodwill impairment and not to adjust the carrying values of the recognized tangible assets and liabilities. Any excess of the carrying value of the reporting unit's goodwill over the implied fair value of the reporting unit's goodwill is recorded as an impairment loss. Based on our analysis, there was no implied goodwill for the SCCS reporting unit; therefore, we recorded a goodwill impairment charge of $40.7 million in the three months ended March 31, 2013, which represents the remaining goodwill balance in the SCCS reporting unit. None of the goodwill impairment charge was deductible for tax purposes.

Long-lived Assets

Impairment of Long-lived Assets

We amortize our intangible assets over their estimated useful lives. We evaluate long-lived assets, which includes property, plant and equipment and intangible assets, for impairment whenever events or changes in circumstances indicate the carrying value of an asset may not be recoverable. The carrying value is not recoverable if it exceeds the undiscounted cash flows resulting from the use of the asset and its eventual disposition. Our estimates of future cash flows attributable to our long-lived assets require significant judgment based on our historical and anticipated results and are subject to many factors. Factors we consider important which could trigger an impairment review include significant negative industry or economic trends, significant loss of customers and changes in the competitive environment of our intra-oral scanning business.

During March 2013, changes in the competitive environment for intra-oral scanners, including announcements from our competitors of new low-priced scanners targeted at orthodontists and general practitioner dentists in North America, that caused us to lower our expectations for growth and profitability for our SCCS reporting unit. As a result, we determined that the carrying value of the SCCS long-lived assets was not recoverable as compared to the value of the undiscounted cash flows of our revised projections for the asset group. In order to determine the impairment amount of our long-lived assets, we fair valued each key component of our long-lived assets within the asset group, which involved the use of significant estimates and assumptions including replacement costs, revenue growth rates, operating margins, and plant and equipment cost trends. We determined our long-lived asset group within the SCCS reporting unit to be primarily finite-lived intangible assets, plant and equipment. Upon completion of this analysis, we recorded a total impairment charge of $26.3 million of which $19.3 million represented the impairment related to our SCCS intangible assets and $7.0 million related to plant and equipment.

Intangible assets arising either as a direct result from the Cadent acquisition or individually acquired are being amortized as follows (in thousands):
 
 
Weighted Average Amortization Period (in years)
 
Gross Carrying Amount as of
September 30, 2013
 
Accumulated
Amortization
 
Accumulated
Impairment Loss
 
Net Carrying
Value as of
September 30, 2013
Trademarks
15
 
$
7,100

 
$
(1,069
)
 
$
(4,179
)
 
$
1,852

Existing technology
13
 
12,600

 
(2,109
)
 
(4,328
)
 
6,163

Customer relationships
11
 
33,500

 
(6,657
)
 
(10,751
)
 
16,092

Other
7
 
285

 
(30
)
 

 
255

 
 
 
$
53,485

 
$
(9,865
)
 
$
(19,258
)
 
$
24,362



 
Weighted Average Amortization Period (in years)
 
Gross Carrying
Amount as of
December 31, 2012
 
Accumulated
Amortization
 
Net Carrying
Value as of
December 31, 2012
Trademarks
15
 
$
7,100

 
$
(895
)
 
$
6,205

Existing technology
13
 
12,600

 
(1,642
)
 
10,958

Customer relationships
11
 
33,500

 
(5,002
)
 
28,498

Other
8
 
125

 
(9
)
 
116

 
 
 
$
53,325

 
$
(7,548
)
 
$
45,777




The total estimated annual future amortization expense for these acquired intangible assets as of September 30, 2013 is as follows (in thousands):
 
Fiscal Year Ending December 31,
 
Remainder of 2013
$
662

2014
2,635

2015
2,629

2016
2,629

2017
2,629

Thereafter
13,178

Total
$
24,362