Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Distribution [Member]
Restructuring Reserve [RollForward]
Balance at the beginning of the period	$ 1,120	$ 0	$ 1,654	$ 0
Increase (decrease)		2,229	74	2,229
Accretion of related lease obligations	100	0	114	0
Payments	(145)	0	(767)	0
Balance at the end of the period	1,075	2,229	1,075	2,229
Manufacturing [Member]
Restructuring Reserve [RollForward]
Balance at the beginning of the period	897	1,627	1,147	1,960
Increase (decrease)		(442)	0	(442)
Accretion of related lease obligations	118	170	350	322
Payments	(143)	(149)	(625)	(634)
Balance at the end of the period	872	1,206	872	1,206
Facility Closing [Member]
Restructuring Reserve [RollForward]
Balance at the beginning of the period	2,017	1,627	2,801	1,960
Increase (decrease)		1,787	74	1,787
Accretion of related lease obligations	218	170	464	322
Payments	(288)	(149)	(1,392)	(634)
Balance at the end of the period	$ 1,947	$ 3,435	$ 1,947	$ 3,435

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6394232&loc=d3e17558-110866

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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Balance Type:	credit
Period Type:	duration

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

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Balance Type:	credit
Period Type:	instant

- Definition

Net total Increase or Decrease in the accrual for restructuring costs during the reporting period.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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