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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 3,301	$ 2,966	$ 9,485	$ 8,949
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets			4 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets			20 years
Non-compete agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets			2 years
Non-compete agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets			6 years
Trademarks | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets			1 year
Trademarks | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets			40 years

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- 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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