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Segment Information - Reconciliation of Segment Operating Income, Depreciation and Amortization, and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Segment Reporting Information [Line Items]
Operating income	$ 67,829	$ 69,706
Depreciation and amortization	33,210	32,411
Capital expenditures	27,726	15,920
Total reportable segments
Segment Reporting Information [Line Items]
Operating income	107,909	102,625
Depreciation and amortization	31,376	30,423
Capital expenditures	24,261	13,218
Unallocated corporate
Segment Reporting Information [Line Items]
Operating income	(40,080)	(32,919)
Depreciation and amortization	1,834	1,988
Capital expenditures	$ 3,465	$ 2,702

X

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ 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)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

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X

- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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X

- Details

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