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v2.4.0.8

Segment Information - Information About Segments (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 30, 2014 | Mar. 31, 2013
Segment Reporting Information [Line Items] |  |
Product revenue | $ 83,569 | $ 74,672
Service revenue | 7,360 | 6,220
Operating income | 22,443 | 17,981
Operating Segments | MVSD |  |
Segment Reporting Information [Line Items] |  |
Product revenue | 77,618 | 68,319
Service revenue | 3,698 | 2,092
Operating income | 28,292 | 22,076
Operating Segments | SISD |  |
Segment Reporting Information [Line Items] |  |
Product revenue | 5,951 | 6,353
Service revenue | 3,662 | 4,128
Operating income | 1,013 | 1,732
Reconciling Items |  |
Segment Reporting Information [Line Items] |  |
Operating income | $ (6,862) | $ (5,827)

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