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Fair Value Measurements - Summary of Changes in Level 3 Contingent Consideration Liability (Details) $ in Thousands	9 Months Ended
	Sep. 27, 2019 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 5,090
Acquisition value	7,929
Cash payments	(1,200)
Changes in fair value	5,331
Balance at end of period	17,150
Del Monte
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	0
Acquisition value	0
Cash payments	(200)
Changes in fair value	200
Balance at end of period	0
Fells Point
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	3,649
Acquisition value	0
Cash payments	0
Changes in fair value	3,710
Balance at end of period	7,359
Bassian
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	0
Acquisition value	7,450
Cash payments	0
Changes in fair value	372
Balance at end of period	7,822
Other Acquisitions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	1,441
Acquisition value	479
Cash payments	(1,000)
Changes in fair value	1,049
Balance at end of period	$ 1,969

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- Definition

Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Contingent Consideration Liability

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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-Publisher FASB
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-Topic 820
-SubTopic 10
-Section 50
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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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