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Goodwill And Identified Intangible Assets
3 Months Ended
Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill And Identified Intangible Assets
GOODWILL AND IDENTIFIED INTANGIBLE ASSETS

The changes to the carrying value of goodwill from January 1, 2017 through March 31, 2017 are reflected below (in thousands):

December 31, 2016
$
382,963

 
 
Purchase price adjustment related to the acquisition of DTS (1)
3,450

 
 
March 31, 2017
$
386,413

 
(2)
(1) This adjustment related to the measurement of unbilled contract receivables which were estimated at the time of acquisition, see Note 6 - "Business Combinations."
(2) Of this amount, approximately $378.7 million is allocated to our Product Licensing reporting unit and approximately $7.7 million is allocated to our Semiconductor and IP Licensing reporting unit.
Identified intangible assets consisted of the following (in thousands):
 
 
 
 
March 31, 2017
 
December 31, 2016
 
Average
Life
(Years)
 
Gross
Assets
 
Accumulated
Amortization
 
Net
 
Gross
Assets
 
Accumulated
Amortization
 
Net
Acquired patents / core technology
3-15
 
$
140,744

 
$
(101,365
)
 
$
39,379

 
$
140,744

 
$
(96,896
)
 
$
43,848

Existing technology
5-10
 
203,442

 
(35,850
)
 
167,592

 
203,442

 
(27,315
)
 
176,127

Customer contracts and related relationships
3-9
 
291,769

 
(27,761
)
 
264,008

 
291,769

 
(14,011
)
 
277,758

Trademarks/trade name
4-10
 
40,083

 
(2,381
)
 
37,702

 
40,083

 
(1,138
)
 
38,945

Non-competition agreements
1
 
2,231

 
(743
)
 
1,488

 
2,231

 
(186
)
 
2,045

Total amortizable intangible assets
 
 
678,269

 
(168,100
)
 
510,169

 
678,269

 
(139,546
)
 
538,723

In-process research and development
 
 
3,156

 

 
3,156

 
3,156

 

 
3,156

Total intangible assets
 
 
$
681,425

 
$
(168,100
)
 
$
513,325

 
$
681,425

 
$
(139,546
)
 
$
541,879


Amortization expense for the three months ended March 31, 2017 and 2016 amounted to $28.6 million and $6.0 million, respectively.
As of March 31, 2017, the estimated future amortization expense of intangible assets is as follows (in thousands):
2017 (remaining 9 months)
$
83,258

2018
107,396

2019
98,310

2020
86,595

2021
78,933

Thereafter
55,677

 
$
510,169