Stockholders' Equity and Stock Compensation Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended				3 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012 Minimum	Jul. 01, 2012 Maximum	Jan. 01, 2012 Performance-based restricted stock Directors and executive officers	Jan. 01, 2012 Time-based restricted stock units Employees
Stockholders' Equity and Stock Compensation Plans
Stock-based compensation expense	$ 2.5	$ 2.5	$ 8.2	$ 7.8
Options granted (in shares)			458,249
Restricted stock award
Exercise price of stock options granted (in dollars per share)					$ 22.53	$ 25.27
Weighted-average fair value of stock options granted (in dollars per share)			$ 8.10
Granted (in shares)							105,567	181,348
Granted, fair value (in dollars per share)							$ 22.53	$ 22.53
Vesting period							3 years	4 years