Summary Of Significant Accounting Policies (Narrative 2) (Details) (USD $)	3 Months Ended		12 Months Ended
	Sep. 29, 2012	Jul. 02, 2011	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount			400,000	400,000	1,200,000
Payment to the investment bank	$ 35,000,000		$ 35,323,000	$ 9,864,000	$ 38,156,000
Common stock fair value	28,000,000
Reduction of common stock, shares	500,000
Maximum amount of common stock required to issue to settle agreement			2,000,000
Accelerated share repurchases, common stock received			128,000
Value of increment in the volume weighted average price that affects number of shares	1.00		1.00
Approximate Number of common stock that was affected by the volume weighted average price			12,000
Settlement of an accelerated share purchase agreement		9,600,000
Initial payment		25,000,000
Common stock recieved upon initial payment		900,000
Reduction of common stock		200,000
Reduction of retained earnings		24,800,000
Reduction of additional paid-in capital		9,600,000
Common Stock [Member]
Summary Of Significant Accounting Policies [Line Items]
Reduction of common stock, additional paid-in capital and retained earnings	100,000
Additional Paid-In Capital [Member]
Summary Of Significant Accounting Policies [Line Items]
Reduction of common stock, additional paid-in capital and retained earnings	26,100,000
Retained Earnings [Member]
Summary Of Significant Accounting Policies [Line Items]
Payment to the investment bank	7,000,000
Reduction of common stock, additional paid-in capital and retained earnings	$ 1,800,000