Consolidated Statements Of Income (USD $)	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Net sales	$ 3,835,985,953	$ 3,738,540,461	$ 3,718,314,651
Cost of goods sold	2,990,822,438	2,910,730,478	2,897,534,853
Gross profit	845,163,515	827,809,983	820,779,798
Operating and administrative expenses	722,644,214	706,497,512	697,602,981
Gain from sale or disposal of assets	825,856	4,261,704	670,025
Income from operations	123,345,157	125,574,175	123,846,842
Other income, net	3,001,161	2,900,341	3,527,065
Interest expense	46,569,864	59,142,378	60,026,564
Loss on early extinguishment of debt		43,089,248
Income before income taxes	79,776,454	26,242,890	67,347,343
Income tax expense	28,350,000	5,447,000	23,903,000
Net income	$ 51,426,454	$ 20,795,890	$ 43,444,343
Class A Common Stock [Member]
Per share amounts:
Basic earnings per common share	$ 2.36	$ 0.89	$ 1.87
Diluted earnings per common share	$ 2.28	$ 0.87	$ 1.79
Cash dividends per common share:
Common Stock	$ 0.66	$ 1.32	$ 0.66
Class B Common Stock [Member]
Per share amounts:
Basic earnings per common share	$ 2.14	$ 0.85	$ 1.70
Diluted earnings per common share	$ 2.14	$ 0.85	$ 1.70
Cash dividends per common share:
Common Stock	$ 0.60	$ 1.20	$ 0.60