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Goodwill, Other Intangible Assets and Other Assets
3 Months Ended
Apr. 02, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, Other Intangible Assets and Other Assets
Goodwill and Other Intangible Assets
Goodwill
The carrying amount of the Company's goodwill at April 2, 2016 was $48.8 million, of which $41.1 million resulted from the acquisition of Evolution Robotics, Inc. in October 2012 and was assigned to the home robots reporting unit. $7.7 million resulted from the acquisition of Nekton Research, LLC completed in September 2008 and was assigned to the defense and security reporting unit. In the three months ended April 2, 2016, in accordance with accounting guidance, the Company performed a goodwill impairment assessment for the disposal group of assets and liabilities of the defense and security business unit that met held for sale criteria. No impairments were identified.
Other Intangible Assets
Other intangible assets include the value assigned to completed technology and a trade name. The estimated useful lives for all of these intangible assets are three to ten years. The intangible assets are being amortized on a straight-line basis, which is consistent with the pattern that the economic benefits of the intangible assets are expected to be utilized.
Intangible assets at April 2, 2016 and January 2, 2016 consisted of the following:
 
April 2, 2016
 
January 2, 2016
 
Cost
 
Accumulated
Amortization
 
Net
 
Cost
 
Accumulated
Amortization
 
Net
 
(In thousands)
Completed technology
$
26,900

 
$
12,100

 
$
14,800

 
$
26,900

 
$
11,236

 
$
15,664

Tradename
100

 
100

 

 
100

 
100

 

Total
$
27,000

 
$
12,200

 
$
14,800

 
$
27,000

 
$
11,336

 
$
15,664


Amortization expense related to acquired intangible assets was $0.9 million and $0.9 million for the three months ended April 2, 2016 and March 28, 2015, respectively. The estimated future amortization expense is expected to be as follows:
 
 
(In thousands)
Remainder of 2016
$
2,593

2017
3,457

2018
3,457

2019
2,818

2020
900

Thereafter
1,575

Total
$
14,800