Basis Of Presentation And Significant Accounting Policies (Summary Of Transactions Related Charges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019
Business Acquisition [Line Items]
Total transaction-related charges	$ 7.2	$ 5.3	$ 11.3	$ 11.6
Coevorden Operations [Member]
Business Acquisition [Line Items]
Total transaction-related charges	1.5		1.7
GBL Divestiture [Member]
Business Acquisition [Line Items]
Total transaction-related charges	2.7	2.5	5.1	2.5
Omega Sea Acquisition [Member]
Business Acquisition [Line Items]
Total transaction-related charges	1.3		1.3
Other [Member]
Business Acquisition [Line Items]
Total transaction-related charges	$ 1.7	$ 2.8	$ 3.2	$ 9.1