Restructuring Activities - Other Restructuring Activities (Details) $ in Thousands	9 Months Ended
Sep. 28, 2019 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 4,001
Cash Payments	(3,078)
Adoption of ASU 842 Adjustment	(735)
Change in Estimates	(50)
Ending balance	138
Restructuring charges
Restructuring Reserve [Roll Forward]
Beginning balance	3,951
Cash Payments	(3,078)
Adoption of ASU 842 Adjustment	(735)
Change in Estimates	0
Ending balance	138
Cost of sales
Restructuring Reserve [Roll Forward]
Beginning balance	50
Cash Payments	0
Adoption of ASU 842 Adjustment	0
Change in Estimates	(50)
Ending balance	0
Severance and benefits
Restructuring Reserve [Roll Forward]
Beginning balance	2,631
Cash Payments	(2,493)
Adoption of ASU 842 Adjustment	0
Change in Estimates	0
Ending balance	138
Lease termination
Restructuring Reserve [Roll Forward]
Beginning balance	861
Cash Payments	(126)
Adoption of ASU 842 Adjustment	(735)
Change in Estimates	0
Ending balance	0
Professional service fees
Restructuring Reserve [Roll Forward]
Beginning balance	43
Cash Payments	(43)
Adoption of ASU 842 Adjustment	0
Change in Estimates	0
Ending balance	0
Other restructuring
Restructuring Reserve [Roll Forward]
Beginning balance	416
Cash Payments	(416)
Adoption of ASU 842 Adjustment	0
Change in Estimates	0
Ending balance	0
Inventory reserve
Restructuring Reserve [Roll Forward]
Beginning balance	50
Cash Payments	0
Adoption of ASU 842 Adjustment	0
Change in Estimates	(50)
Ending balance	$ 0

Restructuring Reserve, Adjustment For Accounting Standards Update

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- 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585

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- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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- Definition

Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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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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