Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 27, 2019	Dec. 28, 2018
Fair Value Disclosures [Abstract]
Long-term earn-out liabilities	$ 11,007	$ 2,792
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fully settled amount of earn-out liability	5,331
Del Monte
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fully settled amount of earn-out liability	$ 200

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.

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

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration