Goodwill and Intangible Assets Intangible Assets, Additions (Details)	3 Months Ended	6 Months Ended
Mar. 29, 2019	Dec. 28, 2018	Mar. 30, 2018	Dec. 29, 2017	Mar. 29, 2019	Mar. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	4 years	11 years 7 months 6 days	5 years 3 months 18 days	14 years 1 month 6 days	9 years 3 months 18 days	12 years 6 months

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration