Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 30, 2013

Amortized Intangible Assets

Intangible assets are as follows (in thousands):

	As of March 30, 2013
	Gross Amount		Accumulated Amortization			Net Amount
Current technology	$	18,978	$	(12,809	)	$	6,169
Patent and patent rights		29,569		(15,460	)		14,109
Customer relationships		20,493		(3,483	)		17,010
Other intangibles, net	$	69,040	$	(31,752	)	$	37,288
Amortization expense for the three months ended March 30, 2013			$	1,863

	As of December 31, 2012
	Gross Amount		Accumulated Amortization			Net Amount
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
Other intangibles, net	$	69,040	$	(29,889	)	$	39,151
Amortization expense for the three months ended March 31, 2012			$	770