Goodwill and Other Intangible Asset Data (Tables)

12 Months Ended

Dec. 31, 2012

Amortized Intangible Assets

Intangible asset data are as follows (in thousands):

	As of December 31, 2012
	Gross Amount		Accumulated Amortization			Net Amount
Amortized intangible assets
Current technology	$	18,978	$	(12,391	)	$	6,587
Patent and patent rights		29,569		(14,618	)		14,951
Customer relationships		20,493		(2,880	)		17,613
Total	$	69,040	$	(29,889	)	$	39,151
Amortization expense for the year ended December 31, 2012			$	4,673

Amortized intangible assets	As of December 31, 2011
	Gross Amount		Accumulated Amortization			Net Amount
Current technology	$	12,718	$	(11,403	)	$	1,315
Patent and patent rights		23,392		(12,079	)		11,313
Customer relationships		1,773		(1,734	)		39
Total	$	37,883	$	(25,216	)	$	12,667
Amortization expense for the year ended December 31, 2011			$	3,320

Estimated Amortization Expense

Estimated amortization expense:
For the year ended December 31, 2013	$	7,382
For the year ended December 31, 2014		7,133
For the year ended December 31, 2015		6,669
For the year ended December 31, 2016		6,231
For the year ended December 31, 2017		5,000
Thereafter		6,736
Total	$	39,151

Carrying Value Amount of Goodwill

Changes in the net carrying value amount of goodwill were as follows (in thousands):

	Total
Unamortized intangible assets:
Goodwill at gross cost	$	180,731
Impairment charge – 2008		(101,028	)
Goodwill as of December 31, 2011		79,703
Acquisitions – LaserBand		24,353
Impairment charge – 2012		(9,114	)
Goodwill as of December 31, 2012	$	94,942

Schedule of Intangible Assets Including Goodwill

	As of December 31,
	2012			2011
Unamortized intangible assets
Goodwill at gross cost	$	205,084		$	180,731
Impairment charges		(110,142	)		(101,028	)
Goodwill	$	94,942		$	79,703