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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Business Segments - Additional Information (Details) - Segment		3 Months Ended		6 Months Ended
	Jul. 04, 2016	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Segment Reporting Information [Line Items]
Number of operating segments				1
Customer Concentration Risk \| Revenue, Total
Segment Reporting Information [Line Items]
Percentage of concentration risk		10.00%	10.00%	10.00%	10.00%
Other than United States \| Customer Concentration Risk \| Revenue, Total
Segment Reporting Information [Line Items]
Percentage of concentration risk		58.10%	59.70%
United States \| Customer Concentration Risk \| Revenue, Total
Segment Reporting Information [Line Items]
Percentage of concentration risk				53.60%
United States \| Customer Concentration Risk \| Subsequent Event \| Revenue, Total
Segment Reporting Information [Line Items]
Percentage of concentration risk	55.30%