Restructuring and Other Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Mar. 29, 2014
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 6,210us-gaap_RestructuringReserve
Restructuring and other charges, net	4,359us-gaap_RestructuringCharges	396us-gaap_RestructuringCharges
Cash payments	(3,949)us-gaap_PaymentsForRestructuring
Effect of foreign currency translation	(85)
Ending balance	6,535us-gaap_RestructuringReserve
Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	4,462
Cash payments	(3,742)
Effect of foreign currency translation	(13)
Ending balance	4,982
Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	1,267
Cash payments	(207)
Effect of foreign currency translation	(72)
Ending balance	1,072
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	481
Cash payments	0
Effect of foreign currency translation	0
Ending balance	481
2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	4,612
Ending balance	4,100
2015 Restructuring Plan [Member] \| Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	4,612
2015 Restructuring Plan [Member] \| Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	0
2015 Restructuring Plan [Member] \| Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	0
Prior restructuring plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	(253)
Prior restructuring plans [Member] \| Employee Severance and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	(337)
Prior restructuring plans [Member] \| Excess Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	84
Prior restructuring plans [Member] \| Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges, net	$ 0

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.

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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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 1

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

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-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 5: 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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- 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

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- Definition

Amount of foreign currency translation adjustment increasing or decreasing the accrual for a specified type of restructuring cost.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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-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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