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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 | 6 Months Ended |
--- | --- | --- | ---
Jul. 04, 2015 | Jun. 28, 2014 | Jul. 04, 2015 | Jun. 28, 2014 | Jan. 03, 2015
Revenue, Major Customer [Line Items] |  |  |  |  |
Concentration Risk, Net Assets Amount, Geographic Area | $ 284,450 |  | $ 284,450 |  | $ 307,738
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 | $ 147,612 | $ 133,493 | $ 294,969 | $ 265,725 |
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 | $ 110,526 | $ 95,462 | $ 222,004 | $ 188,115 |
Total product revenue, in percentage | 74.90% | 71.50% | 75.30% | 70.80% |
Europe, Middle East and Africa | Reportable Geographical Components |  |  |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 24,335 | $ 22,717 | $ 48,396 | $ 49,729 |
Total product revenue, in percentage | 16.50% | 17.00% | 16.40% | 18.70% |
Asia and Australia | Reportable Geographical Components |  |  |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 12,751 | $ 15,314 | $ 24,569 | $ 27,881 |
Total product revenue, in percentage | 8.60% | 11.50% | 8.30% | 10.50% |
United States | Reportable Geographical Components |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Concentration Risk, Net Assets Amount, Geographic Area | $ 124,886 |  | $ 124,886 |  | $ 144,541
Concentration Risk, Net Assets Geographic Area, Percentage | 43.90% |  | 43.90% |  | 47.00%
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |  |  |
Total product revenue | $ 106,236 | $ 91,589 | $ 213,512 | $ 179,636 |
Non-US [Member] | Reportable Geographical Components |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Concentration Risk, Net Assets Amount, Geographic Area | $ 159,564 |  | $ 159,564 |  | $ 163,197
Concentration Risk, Net Assets Geographic Area, Percentage | 56.10% |  | 56.10% |  | 53.00%

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