Inventories (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 29, 2018
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 69,668	$ 89,641
Work-in-process	64,392	58,643
Finished goods	149,949	188,506
Valuation reserves	(6,442)	(6,995)
Inventories	$ 277,567	$ 329,795

Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

+ References

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-Publisher FASB
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-Topic 210
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02.6(a)(1))
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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-Name Accounting Standards Codification
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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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