Goodwill and Identified Intangible Assets (Tables)

6 Months Ended

Jul. 03, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

The following table presents goodwill by reportable segments (in thousands):



	Video		Cable Edge		Total
As of December 31, 2014	$	136,975	$	60,909	$	197,884
Foreign currency translation adjustment	13		6		19
As of July 3, 2015	$	136,988	$	60,915	$	197,903

Summary of Goodwill and Identified Intangible Assets

The following is a summary of identifiable intangible assets (in thousands):



		July 3, 2015							December 31, 2014
	Range of Useful Lives	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Identifiable intangibles:
Developed core technology	4-6 years	$	136,145	$	(135,973	)	$	172	$	136,145	$	(135,426	)	$	719
Customer relationships/contracts	5-6 years	67,098		(61,218		)	5,880		67,098		(58,784		)	8,314
Maintenance agreements and related relationships	6-7 years	7,100		(5,992		)	1,108		7,100		(5,534		)	1,566
Total identifiable intangibles		$	210,343	$	(203,183	)	$	7,160	$	210,343	$	(199,744	)	$	10,599

Amortization Expense for Identifiable Purchased Intangible Assets

Amortization expense for the identifiable purchased intangible assets for the three and six months ended July 3, 2015 and June 27, 2014 was allocated as follows (in thousands):



	Three months ended				Six months ended
	July 3, 2015		June 27, 2014		July 3, 2015		June 27, 2014
Included in cost of revenue	$	86	$	4,482	$	547	$	9,198
Included in operating expenses	1,446		1,718		2,892		3,668
Total amortization expense	$	1,532	$	6,200	$	3,439	$	12,866

Estimated Future Amortization Expense of Purchased Intangible Assets

The estimated future amortization expense of purchased intangible assets with definite lives is as follows (in thousands):



	Cost of Revenue		Operating Expenses		Total
Year ended December 31,
2015 (remaining 6 months)	$	172	$	2,892	$	3,064
2016	—		4,096		4,096
Total future amortization expense	$	172	$	6,988	$	7,160