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Goodwill and Intangible Assets
3 Months Ended
Dec. 28, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
GOODWILL AND INTANGIBLE ASSETS
 
Goodwill is tested for impairment on an annual basis and between annual tests if events or circumstances indicate that an impairment loss may have occurred, and we write down these assets when impaired. We perform our annual impairment tests during the fourth quarter of each fiscal year using the opening balance sheet as of the first day of the fourth quarter, with any resulting impairment recorded in the fourth quarter of the fiscal year.

During the three months ended December 28, 2013, we noted no indications of impairment or triggering events to cause us to review goodwill for potential impairment. We will conduct our annual goodwill testing during the fourth fiscal quarter.
 
The changes in the carrying amount of goodwill by segment for the period from September 28, 2013 to December 28, 2013 are as follows (in thousands):
 
Specialty
Lasers and
Systems
 
Commercial
Lasers and
Components
 
Total
Balance as of September 28, 2013
$
107,045

 
$
6,363

 
$
113,408

Additions

 

 

Translation adjustments and other
1,230

 

 
1,230

Balance as of December 28, 2013
$
108,275

 
$
6,363

 
$
114,638


 
Components of our amortizable intangible assets are as follows (in thousands):
 
 
December 28, 2013
 
September 28, 2013
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Existing technology
$
82,557

 
$
(53,605
)
 
$
28,952

 
$
82,220

 
$
(51,570
)
 
$
30,650

Customer lists
17,431

 
(7,999
)
 
9,432

 
17,341

 
(7,465
)
 
9,876

Trade name
712

 
(589
)
 
123

 
710

 
(576
)
 
134

Non-compete agreement
570

 
(561
)
 
9

 
570

 
(558
)
 
12

In-process research & development
2,316

 

 
2,316

 
2,299

 

 
2,299

Total
$
103,586

 
$
(62,754
)
 
$
40,832

 
$
103,140

 
$
(60,169
)
 
$
42,971


     ** For accounting purposes, when an intangible asset is fully amortized, it is removed from the disclosure schedule.

Amortization expense for intangible assets for the three months ended December 28, 2013 and December 29, 2012 was $2.4 million and $1.2 million, respectively, which includes $1.9 million and $0.9 million, respectively, for amortization of existing technology and production know-how.

At December 28, 2013, estimated amortization expense for the remainder of fiscal 2014, the next five succeeding fiscal years and all fiscal years thereafter are as follows (in thousands):
 
Estimated
Amortization
Expense
2014 (remainder)
$
7,331

2015
9,378

2016
8,994

2017
7,906

2018
4,705

2019
2,278

Thereafter
240

Total
$
40,832