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Segment Information and Enterprise Reporting - Analysis of Product Revenues Based upon Geographic Area Shipped (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Oct. 03, 2015 | Sep. 27, 2014 | Oct. 03, 2015 | Sep. 27, 2014 | Jan. 03, 2015
Revenue, Major Customer [Line Items] |  |  |  |  |
Concentration Risk, Net Assets Amount, Geographic Area | $ 268,234 |  | $ 268,234 |  | $ 307,741
Concentration Risk, Net Assets Geographic Area, Percentage | 100.00% |  | 100.00% |  | 100.00%
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 144,603 | $ 137,142 | $ 439,572 | $ 402,868 |
Total product revenue, in percentage | 100.00% | 100.00% | 100.00% | 100.00% |
North and South America | Reportable Geographical Components |  |  |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 105,217 | $ 99,563 | $ 327,221 | $ 287,678 |
Total product revenue, in percentage | 72.80% | 72.60% | 74.40% | 71.40% |
Europe, Middle East and Africa | Reportable Geographical Components |  |  |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 25,729 | $ 23,417 | $ 74,125 | $ 73,146 |
Total product revenue, in percentage | 17.80% | 17.10% | 16.90% | 18.20% |
Asia and Australia | Reportable Geographical Components |  |  |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 13,657 | $ 14,162 | $ 38,226 | $ 42,044 |
Total product revenue, in percentage | 9.40% | 10.30% | 8.70% | 10.40% |
United States | Reportable Geographical Components |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Concentration Risk, Net Assets Amount, Geographic Area | $ 118,795 |  | $ 118,795 |  | $ 144,541
Concentration Risk, Net Assets Geographic Area, Percentage | 44.30% |  | 44.30% |  | 47.00%
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 101,471 | $ 95,289 | $ 314,983 | $ 274,924 |
International | Reportable Geographical Components |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Concentration Risk, Net Assets Amount, Geographic Area | $ 149,439 |  | $ 149,439 |  | $ 163,200
Concentration Risk, Net Assets Geographic Area, Percentage | 55.70% |  | 55.70% |  | 53.00%

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