Other expense (income), net (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Other Nonoperating Income (Expense) [Abstract]
Foreign currency losses (gains), net	$ 2,456	$ 3,568	$ 7,178	$ 6,253
Release of indemnification asset	0	0	1,749	0
All other, net	(1,750)	(2,283)	(2,133)	(4,798)
Total other expense, net	$ 706	$ 1,285	$ 6,794	$ 1,455

Releasel of Indemnification Asset

No definition available.

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- Definition

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 50
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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

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-Publisher FASB
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-SubTopic 10
-Section S99
-Paragraph 2
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- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
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- References

No definition available.

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