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Note 4 - Goodwill and Other Intangible Assets - Details of Other Intangible Assets and Related Future Amortization Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 30, 2017 | Dec. 31, 2016
Finite-Lived Intangible Asset, Useful Life |  |
Finite-lived intangible assets, gross | $ 350,432 | $ 331,648
Finite-lived intangible assets, accumulated amortization | 146,582 | 118,622
Finite-lived intangible assets, Net Book Value | 203,850 | 213,026
Finite-lived Intangible Assets Acquired | $ 11,030 | $ 144,368
Patents, Licenses, and Software [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 11 years 146 days | 11 years 146 days
Finite-lived intangible assets, gross | $ 141,520 | $ 131,611
Finite-lived intangible assets, accumulated amortization | 59,609 | 48,004
Finite-lived intangible assets, Net Book Value | $ 81,911 | $ 83,607
Finite-lived intangible assets, useful life (Year) | 9 years 219 days | 9 years 219 days
Finite-lived Intangible Assets Acquired | $ 7,810 | $ 65,449
Distribution Rights [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 12 years 36 days | 12 years 36 days
Finite-lived intangible assets, gross | $ 46,233 | $ 49,150
Finite-lived intangible assets, accumulated amortization | 33,361 | 30,155
Finite-lived intangible assets, Net Book Value | $ 12,872 | $ 18,995
Customer Lists, Trademarks, and Trade Names [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 15 years 219 days | 14 years 146 days
Finite-lived intangible assets, gross | $ 162,679 | $ 150,887
Finite-lived intangible assets, accumulated amortization | 53,612 | 40,463
Finite-lived intangible assets, Net Book Value | $ 109,067 | $ 110,424
Finite-lived intangible assets, useful life (Year) | 9 years | 13 years 182 days
Finite-lived Intangible Assets Acquired | $ 3,220 | $ 78,919

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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