Segment Reporting (Financial Data for Segment Disclosures) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Jun. 25, 2011	Jun. 26, 2010	Jun. 25, 2011	Jun. 26, 2010	Sep. 25, 2010
Sales to unaffiliated customers	$ 717,210	$ 316,583	$ 1,939,016	$ 983,688
Net sales	717,210	316,583	1,939,016	983,688
Income before taxes	88,748	36,463	203,398	93,503
Total assets	2,874,422	1,192,905	2,874,422	1,192,905	1,370,574
Stock compensation	3,003	2,093	7,520	5,941
Interest expense	29,830	1,495	52,560	3,376
Property additions	92,155	34,890	180,983	84,426
Depreciation and amortization	30,979	12,005	79,763	29,876
SCBU [Member]
Sales to unaffiliated customers	296,861	157,169	769,506	445,517
Intersegment sales	80,482	68,475	369,683	194,461
Net sales	377,343	225,644	1,139,189	639,978
Income before taxes	73,438	27,691	216,081	86,772
Total assets	1,153,511	846,879	1,153,511	846,879
Stock compensation	968	645	2,418	1,966
Property additions	72,939	27,970	129,335	61,273
Depreciation and amortization	13,364	8,146	38,268	19,535
KBU [Member]
Sales to unaffiliated customers	305,421	159,414	934,543	538,171
Intersegment sales	3,320	39,955	157,476	112,720
Net sales	308,741	199,369	1,092,019	650,891
Income before taxes	44,765	23,720	96,687	50,769
Total assets	425,473	353,966	425,473	353,966
Stock compensation	669	565	1,685	1,563
Property additions	8,580	4,284	18,893	12,173
Depreciation and amortization	2,551	2,021	7,215	5,486
CBU [Member]
Sales to unaffiliated customers	114,928		234,967
Intersegment sales	17,942		34,946
Net sales	132,870		269,913
Income before taxes	13,450		15,816
Total assets	1,135,210		1,135,210
Stock compensation	147		222
Property additions	8,040		17,819
Depreciation and amortization	11,516		24,593
Corporate [Member]
Income before taxes	(42,905)	(10,328)	(100,534)	(32,302)
Total assets	540,042	57,069	540,042	57,069
Stock compensation	1,219	883	3,195	2,412
Interest expense	29,830	1,495	52,560	3,376
Property additions	2,596	2,636	14,936	10,980
Depreciation and amortization	3,548	1,838	9,687	4,855
Eliminations [Member]
Intersegment sales	(101,744)	(108,430)	(562,105)	(307,181)
Net sales	(101,744)	(108,430)	(562,105)	(307,181)
Income before taxes		(4,620)	(24,652)	(11,736)
Total assets	$ (379,814)	$ (65,009)	$ (379,814)	$ (65,009)