Subsequent Events (Details) - shares		6 Months Ended
	Apr. 17, 2017	Apr. 01, 2017	Apr. 02, 2016
Subsequent Event [Line Items]
Stock options granted (in shares)		0	314,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Stock options granted (in shares)	284,000
Restricted Stock Units (RSUs) [Member]
Subsequent Event [Line Items]
Stock options granted (in shares)		2,000	74,000
Restricted Stock Units (RSUs) [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Stock options granted (in shares)	98,000
Officers And Employees [Member] | Performance Shares [Member]
Subsequent Event [Line Items]
Stock options granted (in shares)			21,000
Officers And Employees [Member] | Performance Shares [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Stock options granted (in shares)	34,000