Acquisition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017	Sep. 29, 2018
Acquisition [Abstract]
Payments to Acquire Businesses, Net of Cash Acquired			$ 12,400
Business acquisition	$ 1,180	$ 0

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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

Name:	us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration