Summary of Significant Accounting Policies - Schedule of Unrealized Loss Recognized in AOCI (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Derivative [Line Items]
(Loss) gain recognized in other comprehensive (loss) income, net	$ (4.5)	$ (5.7)	$ 0.8
Interest rate caps - derivative
Derivative [Line Items]
(Loss) gain recognized in other comprehensive (loss) income, net	(8.0)	(5.7)	0.8
Interest Rate Swap [Member]
Derivative [Line Items]
(Loss) gain recognized in other comprehensive (loss) income, net	$ 3.5	$ 0.0	$ 0.0

Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109228884&loc=d3e1436-108581

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580

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