Basis Of Presentation And Significant Accounting Policies (Summary Of Transactions Related Charges) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2019	Dec. 30, 2018
Business Acquisition [Line Items]
Total transaction-related charges	$ 4.1	$ 6.3
Coevorden Operations [Member]
Business Acquisition [Line Items]
Total transaction-related charges	0.2
GBL Divestiture [Member]
Business Acquisition [Line Items]
Total transaction-related charges	2.3
Other [Member]
Business Acquisition [Line Items]
Total transaction-related charges	$ 1.6	$ 6.3