Segment Information (Consolidated Net Sales And Long Lived Assets) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 30, 2017 |
Sep. 30, 2017 |
Jul. 01, 2017 |
Apr. 01, 2017 |
Dec. 31, 2016 |
Oct. 01, 2016 |
Jul. 02, 2016 |
Apr. 02, 2016 |
Dec. 30, 2017 |
Dec. 31, 2016 |
Jan. 02, 2016 |
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| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | $ 273,114 | $ 261,765 | $ 257,063 | $ 255,323 | $ 252,901 | $ 254,219 | $ 258,514 | $ 240,449 | $ 1,047,265 | $ 1,006,083 | $ 918,499 |
| Long-lived assets | 176,251 | 174,489 | 176,251 | 174,489 | |||||||
| China [Member] | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | 482,965 | 437,386 | 371,737 | ||||||||
| Long-lived assets | 96,248 | 91,909 | 96,248 | 91,909 | |||||||
| United States [Member] | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | 121,056 | 130,427 | $ 140,057 | ||||||||
| Long-lived assets | $ 59,589 | $ 63,654 | $ 59,589 | $ 63,654 | |||||||
| X | ||||||||||
- Definition 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
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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. No definition available.
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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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