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Segment Information (Tables)
3 Months Ended
Mar. 30, 2014
Segment Reporting [Abstract]  
Information About Segments
The following table summarizes information about the segments (in thousands):
Three-months Ended  
 March 30, 2014
MVSD
 
SISD
 
Reconciling Items
 
Consolidated
Product revenue
$
77,618

 
$
5,951

 
$

 
$
83,569

Service revenue
3,698

 
3,662

 

 
7,360

Operating income
28,292

 
1,013

 
(6,862
)
 
22,443

 
Three-months Ended  
 March 31, 2013
MVSD
 
SISD
 
Reconciling Items
 
Consolidated
Product revenue
$
68,319

 
$
6,353

 
$

 
$
74,672

Service revenue
2,092

 
4,128

 

 
$
6,220

Operating income
22,076

 
1,732

 
(5,827
)
 
$
17,981