Joint Ventures and VIE's (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 28, 2018	Dec. 29, 2017	Sep. 28, 2018
Consolidated Joint Venture \| VIE Primary beneficiary, aggregate disclosure
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]
VIE consolidated assets	$ 200.3	$ 162.3
VIE consolidated liabilities	123.6	86.1
Unconsolidated Joint Venture \| VIE not primary beneficiary, aggregate disclosure
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]
VIE unconsolidated assets	92.2	85.2
VIE unconsolidated liabilities	88.0	75.9
Equity method investment exceeds carrying amount of share of net assets	74.2
Related Party Transaction, Due from (to) Related Party	10.6		$ 11.1
Unconsolidated Joint Venture \| VIE, primary beneficiary
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]
VIE unconsolidated assets	136.8	148.4
Income from equity method joint ventures	$ 10.2	$ 8.2

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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The amount of net income (loss) reported by an equity method investment of the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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