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Summary of Significant Accounting Policies (Product Warranties) (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016 | Dec. 29, 2018 | Dec. 30, 2017
Product Warranty Accrual [Roll Forward] |  |  |  |  |
Balance at beginning of period | $ 15,388 | $ 15,250 | $ 16,227 |  |
Accruals settled from divestiture | 0 | 0 | (538) |  |
Accruals for warranties issued during period | 22,697 | 20,075 | 20,055 |  |
Adjustments related to pre-existing warranties | 233 | 194 | 604 |  |
Settlements made during the period | (22,868) | (20,131) | (21,098) |  |
Balance at end of period | 15,450 | 15,388 | 15,250 |  |
Product Warranties Disclosures [Abstract] |  |  |  |  |
Current - in the next twelve months |  |  |  | $ 9,455 | $ 9,524
Long-term - beyond one year |  |  |  | 5,995 | 5,864
Standard product warranty accrual | $ 15,388 | $ 15,250 | $ 16,227 | $ 15,450 | $ 15,388

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- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c)(1),(c)(5) -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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