Restructuring and Related Costs - Schedule of Restructuring Reserve by Type of Cost (Details) $ in Thousands	9 Months Ended
Sep. 28, 2019 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 24,351
Charges	47,355
Cash	(16,734)
Non-cash Settlements and Other	(22,461)
Ending balance	32,511
Severance and related expenses
Restructuring Reserve [Roll Forward]
Beginning balance	19,842
Charges	30,934
Cash	(14,660)
Non-cash Settlements and Other	(3,605)
Ending balance	32,511
Facilities
Restructuring Reserve [Roll Forward]
Beginning balance	4,266
Charges	2,194
Cash	(1,831)
Non-cash Settlements and Other	(4,629)
Ending balance	0
Accelerated amortization of lease assets due to cease use
Restructuring Reserve [Roll Forward]
Beginning balance	0
Charges	12,493
Cash	0
Non-cash Settlements and Other	(12,493)
Ending balance	0
Accelerated depreciation and other asset impairment charges
Restructuring Reserve [Roll Forward]
Beginning balance	243
Charges	1,734
Cash	(243)
Non-cash Settlements and Other	(1,734)
Ending balance	$ 0

Restructuring Reserve, Settled Without Cash And Other

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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

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Name Accounting Standards Codification
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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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
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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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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