v2.4.0.6
Segment Information and Enterprise Reporting - Analysis of Product Revenues Based upon Geographic Area Shipped (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
Analysis of Product Revenues Based upon the Geographic Area Shipped        
Total product revenue $ 112,108 $ 97,639 $ 339,644 $ 301,771
Total product revenue, in percentage 100.00% 100.00% 100.00% 100.00%
North and South America [Member]
       
Analysis of Product Revenues Based upon the Geographic Area Shipped        
Total product revenue 82,656 73,295 253,472 225,311
Total product revenue, in percentage 73.70% 75.10% 74.60% 74.70%
Europe, Middle East and Africa [Member]
       
Analysis of Product Revenues Based upon the Geographic Area Shipped        
Total product revenue 15,691 12,947 47,983 42,906
Total product revenue, in percentage 14.00% 13.20% 14.10% 14.20%
Asia and Australia [Member]
       
Analysis of Product Revenues Based upon the Geographic Area Shipped        
Total product revenue 13,761 11,397 38,189 33,554
Total product revenue, in percentage 12.30% 11.70% 11.30% 11.10%
United States [Member]
       
Analysis of Product Revenues Based upon the Geographic Area Shipped        
Total product revenue $ 79,222 $ 70,343 $ 243,165 $ 214,216