Segment Reporting Information - Geographic (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2018	Mar. 31, 2017	Dec. 29, 2017
Geographic Information [Line Items]
Net Sales	$ 406,348	$ 340,590
Long-lived Assets	207,676		$ 204,298
United States
Geographic Information [Line Items]
Net Sales	193,782	174,854
Long-lived Assets	164,445		163,416
Other countries
Geographic Information [Line Items]
Net Sales	212,566	$ 165,736
Long-lived Assets	$ 43,231		$ 40,882

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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