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Schedule Of Amortization Of Intangibles (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Segment Reporting Information [Line Items]
Amortization of intangibles	$ 2,389	$ 2,505	$ 7,259	$ 7,763
CCS
Segment Reporting Information [Line Items]
Amortization of intangibles	1,058	1,090	3,220	3,507
ME
Segment Reporting Information [Line Items]
Amortization of intangibles	26	107	118	332
SMD
Segment Reporting Information [Line Items]
Amortization of intangibles	$ 1,305	$ 1,308	$ 3,921	$ 3,924

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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