Segment Information and Enterprise Reporting - Analysis of Product Revenue Based upon Geographic Area Shipped (Detail) - USD ($) $ in Thousands	12 Months Ended
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%

Concentration Risk, Long-lived Asset Geographic Area, Percentage

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Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]

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Percentage Of Product Revenue Based Upon Geographic Area By Destination

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Total revenue from both the sale of goods during the reporting period as well as royalties earned during the period, excluding royalty revenue based on a third party settlement agreement, reduced by sales returns and allowances, and sales discounts.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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-Topic 825
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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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