Restructuring and Other Charges (Details) $ in Thousands	9 Months Ended
Sep. 29, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 13,784
Restructuring and other charges (credits)	(2,610)
Cash payments	(10,220)
Effect of foreign currency translation	(47)
Ending balance	907
Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	13,535
Restructuring and other charges (credits)	(3,029)
Cash payments	(9,963)
Effect of foreign currency translation	(36)
Ending balance	507
Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	249
Restructuring and other charges (credits)	419
Cash payments	(257)
Effect of foreign currency translation	(11)
Ending balance	$ 400

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.

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=109223946&loc=d3e3367-108585

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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
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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
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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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