Goodwill And Identified Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

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

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

Estimated Future Amortization Expense

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