Intangible Assets

12 Months Ended

Dec. 31, 2013

Intangible Assets

INTANGIBLE ASSETS

Intangible assets at December 31, 2013 and 2012 consist of the following:

2013
(In thousands)	Gross  carrying Amount		Accumulated amortization		Net  carrying value		Weighted average life in years
Patents	$	1,369	$	649	$	720	9.8
Developed technology	78,686		62,257		16,429		7.4
Trademarks and trade names	13,092		7,306		5,786		12.0
Customer relationships	57,617		39,146		18,471		11.0
Other	2,213		110		2,103		13.3
	$	152,977	$	109,468	$	43,509	9.3

2012
(In thousands)	Gross  carrying amount		Accumulated amortization		Net  carrying value		Weighted average life in years
Patents	$	19,104	$	18,226	$	878	9.1
Developed technology	76,414		59,147		17,267		7.5
Trademarks and trade names	12,677		6,633		6,044		12.1
Customer relationships	56,700		33,761		22,939		11.1
Other	1,510		1,431		79		9.4
	$	166,405	$	119,198	$	47,207	9.3

The table below sets forth the amortization expense for the years ended December 31, 2013, 2012, and 2011:

(In thousands)	2013		2012		2011
Amortization expense	$	9,347	$	9,594	$	10,225

The amortization expense for each of the five succeeding years and thereafter relating to intangible assets currently recorded in the Company's consolidated balance sheets is estimated to be the following at December 31, 2013:

Fiscal year ending December 31	(In thousands)
2014	$	8,441
2015	6,394
2016	6,394
2017	6,394
2018	5,547
Thereafter	10,339
	$	43,509