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Assets Held for Sale and Net Gain on Disposition (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Oct. 01, 2016 USD ($) property	Jul. 02, 2016 USD ($)	Oct. 03, 2015 USD ($)	Oct. 01, 2016 USD ($) property	Oct. 03, 2015 USD ($)	Jan. 02, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties held for sale | property	7			7
Proceeds from sale of facility				$ 18,900	$ 621
Gain disposition of property plant equipment	$ 13,940		$ 0	14,701	$ 0
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, assets, current	$ 5,600			5,600
Total Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, assets, current						$ 2,300
Assets Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of facility		$ 16,600		17,200
Gain disposition of property plant equipment		$ 13,900		$ 14,700

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e1107-107759

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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