Shareholders' Equity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended						9 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012 Class A Common Stock [Member]	Jun. 30, 2012 Class B Common Stock [Member]	Jun. 30, 2012 Common Stock [Member]	Oct. 01, 2011 Common Stock [Member]	Jun. 30, 2012 Additional Paid-In Capital [Member]	Jun. 30, 2012 Retained Earnings [Member]	Jun. 30, 2012 Treasury Stock [Member]	Jun. 30, 2012 Treasury Stock [Member] Class A Common Stock [Member]	Jun. 30, 2012 Treasury Stock [Member] Class B Common Stock [Member]	Jun. 30, 2012 Stock Employee Compensation Trust (Sect) [Member]	Jun. 30, 2012 Stock Employee Compensation Trust (Sect) [Member] Class B Common Stock [Member]	Jun. 30, 2012 Accumulated Other Comprehensive (Loss) Income [Member]
Shareholders' Equity [Line Items]
Stock Issued During Period, Value, Other														$ 773
Stock Issued During Period, Shares, Other															20,338
Beginning of period			1,191,891				51,280	51,280	412,370	1,016,754	(74,479)			(13,090)		(200,944)
Beginning of period, Shares					43,534,575	7,745,138						(2,393,039)	(3,305,971)		(395,470)
Conversion of Class B to Class A, Shares					31,997	(31,997)
Equity-based compensation expense									5,540
Issuance of treasury shares at more than cost									895		681
Adjustment to market - SECT									3,505					(3,137)
Net earnings	38,871	33,838	110,665	97,860						110,665
Purchase of treasury shares											(831)			(1,876)
End of Period, Shares					43,566,572	7,713,141						(2,285,395)	(3,305,971)		(419,612)
Issuance of treasury shares, Shares												127,775	0
Purchase of treasury shares, Shares												(20,131)	0		(44,480)
Other Comprehensive Income (Loss), Net of Tax	(18,289)	10,201	(5,418)	29,757												(5,418)
TOTAL SHAREHOLDERS' EQUITY, Shares					41,281,177	3,987,558
End of period	$ 1,302,688		$ 1,302,688				$ 51,280	$ 51,280	$ 422,310	$ 1,127,419	$ (74,629)			$ (17,330)		$ (206,362)