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Segment Information and Enterprise Reporting - Analysis of Product Revenue Based upon Geographic Area Shipped (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items] |  |  |
Long-Lived Assets | $ 225,167 | $ 210,323 | $ 176,922
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Total product revenue | $ 663,846 | $ 599,334 | $ 556,764
Total product revenue, in percentage | 100.00% | 100.00% | 100.00%
Concentration Risk, Long-lived Asset Geographic Area, Percentage | 100.00% | 100.00% | 100.00%
North and South America |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Total product revenue | $ 20,030 | $ 16,708 | $ 17,834
Total product revenue, in percentage | 3.00% | 2.80% | 3.20%
Europe, Middle East and Africa |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Total product revenue | $ 112,273 | $ 105,323 | $ 100,747
Total product revenue, in percentage | 16.90% | 17.60% | 18.10%
Asia and Australia |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Total product revenue | $ 65,955 | $ 55,675 | $ 57,951
Total product revenue, in percentage | 10.00% | 9.30% | 10.40%
United States |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Total product revenue | $ 465,588 | $ 421,628 | $ 380,232
Reportable Geographical Components [Member] | Americas [Member] |  |  |
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items] |  |  |
Long-Lived Assets | $ 216,784 | $ 203,553 | $ 170,117
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Concentration Risk, Long-lived Asset Geographic Area, Percentage | 96.30% | 96.80% | 96.20%
Reportable Geographical Components [Member] | United States |  |  |
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Concentration Risk, Percentage | 70.10% | 70.30% | 68.30%
Reportable Geographical Components [Member] | Non-US [Member] |  |  |
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items] |  |  |
Long-Lived Assets | $ 8,383 | $ 6,770 | $ 6,805
Analysis of Product Revenues Based upon the Geographic Area Shipped |  |  |
Concentration Risk, Long-lived Asset Geographic Area, Percentage | 3.70% | 3.20% | 3.80%

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