Repurchase of Common Stock (Shares Repurchased) (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended			3 Months Ended	12 Months Ended			75 Months Ended
	Sep. 29, 2018	Sep. 01, 2018	Aug. 04, 2018	Sep. 29, 2018	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016	Sep. 29, 2018
Equity, Class of Treasury Stock [Line Items]
Total Number of Shares Purchased					463,974	413,337	140,336	3,357,461
Dollar Value of Shares that May Yet Be Purchased Under the Plans	$ 12.3			$ 12.3	$ 12.3			$ 12.3
Common Stock
Equity, Class of Treasury Stock [Line Items]
Total Number of Shares Purchased	43,459	124,232	12,925	180,616
Average Price Paid per Share	$ 18.31	$ 18.48	$ 18.20	$ 18.42
Dollar Value of Shares that May Yet Be Purchased Under the Plans	$ 12.3	$ 3.1	$ 5.4	$ 12.3	$ 12.3			$ 12.3
Common Stock \| Publicly Announced Plan
Equity, Class of Treasury Stock [Line Items]
Total Number of Shares Purchased	43,459	124,332	12,925	180,716