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Segment Information (Operations By Lines Of Business) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 24, 2016 | Jun. 25, 2016 | Mar. 26, 2016 | Dec. 26, 2015 | Sep. 26, 2015 | Jun. 27, 2015 | Mar. 28, 2015 | Dec. 27, 2014 | Sep. 24, 2016 | Sep. 26, 2015 | Sep. 27, 2014
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers | $ 962,373,000 | $ 957,178,000 | $ 924,312,000 | $ 951,114,000 | $ 952,838,000 | $ 945,974,000 | $ 915,335,000 | $ 964,497,000 | $ 3,794,977,406 | $ 3,778,643,782 | $ 3,835,985,953
Total income from operations |  |  |  |  |  |  |  |  | 128,601,998 | 139,182,043 | 123,345,157
Other income, net |  |  |  |  |  |  |  |  | 2,362,772 | 2,282,854 | 3,001,161
Interest expense |  |  |  |  |  |  |  |  | 46,330,304 | 47,006,774 | 46,569,864
Income before income taxes |  |  |  |  |  |  |  |  | 84,634,466 | 94,458,123 | 79,776,454
Total assets | 1,686,478,299 |  |  |  | 1,654,828,227 |  |  |  | 1,686,478,299 | 1,654,828,227 | 1,638,757,000
Total capital expenditures |  |  |  |  |  |  |  |  | 137,642,132 | 104,055,949 | 108,338,402
Total depreciation and amortization |  |  |  |  |  |  |  |  | 106,587,686 | 102,876,964 | 97,663,587
Elimination of intercompany receivable |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total assets | (2,415,000) |  |  |  | (2,338,000) |  |  |  | (2,415,000) | (2,338,000) | (2,770,000)
Grocery |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 1,392,311,000 | 1,387,195,000 | 1,397,870,000
Non-foods |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 817,161,000 | 769,168,000 | 729,934,000
Perishables |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 1,011,749,000 | 981,221,000 | 937,402,000
Gasoline |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 435,578,000 | 498,220,000 | 618,147,000
Retail |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 3,656,799,000 | 3,635,804,000 | 3,683,353,000
Total income from operations |  |  |  |  |  |  |  |  | 112,906,000 | 126,143,000 | 112,030,000
Total assets | 1,555,319,000 |  |  |  | 1,525,682,000 |  |  |  | 1,555,319,000 | 1,525,682,000 | 1,496,860,000
Total capital expenditures |  |  |  |  |  |  |  |  | 134,732,000 | 100,894,000 | 105,808,000
Total depreciation and amortization |  |  |  |  |  |  |  |  | 99,322,000 | 95,540,000 | 90,025,000
Other Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 138,178,000 | 142,840,000 | 152,633,000
Total income from operations |  |  |  |  |  |  |  |  | 15,696,000 | 13,039,000 | 11,315,000
Total assets | $ 133,574,000 |  |  |  | $ 131,484,000 |  |  |  | 133,574,000 | 131,484,000 | 144,667,000
Total capital expenditures |  |  |  |  |  |  |  |  | 2,910,000 | 3,162,000 | 2,530,000
Total depreciation and amortization |  |  |  |  |  |  |  |  | $ 7,266,000 | $ 7,337,000 | $ 7,639,000

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