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Quaterly Financial Data - Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2015 | Jan. 31, 2015 | Oct. 31, 2014 | Jul. 31, 2014 | Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2013 | Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2013
Total revenue |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 1,653,858 | $ 1,671,961 | $ 2,150,211 | $ 2,291,186 | $ 1,919,566 | $ 1,790,055 | $ 2,015,885 | $ 2,114,749 | $ 7,767,216 | $ 7,840,255 | $ 7,250,840
Gross profit |  |  |  |  |  |  |  |  |  |  |
Gross profit | 346,543 | 351,046 | 371,282 | 370,914 | 283,620 | 276,690 | 319,285 | 342,421 | 1,439,785 | 1,222,016 | 1,071,069
Net income | $ 41,343 | $ 39,319 | $ 49,869 | $ 50,097 | $ 20,932 | $ 12,663 | $ 39,430 | $ 53,795 | $ 180,628 | $ 126,820 | $ 103,814
Net income per common share |  |  |  |  |  |  |  |  |  |  |
Basic (in Dollars per share) | $ 1.06 | $ 1.01 | $ 1.29 | $ 1.30 | $ 0.54 | $ 0.33 | $ 1.03 | $ 1.40 | $ 4.66 | $ 3.30 | $ 2.71
Diluted (in Dollars per share) | $ 1.05 | $ 1.01 | $ 1.28 | $ 1.28 | $ 0.54 | $ 0.33 | $ 1.01 | $ 1.39 | $ 4.62 | $ 3.26 | $ 2.69
Fuel |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 1,010,033 | $ 1,056,458 | $ 1,470,768 | $ 1,607,126 | $ 1,366,952 | $ 1,255,774 | $ 1,416,980 | $ 1,514,874 | $ 5,144,385 | $ 5,554,580 |
Gross profit |  |  |  |  |  |  |  |  |  |  |
Gross profit | 75,228 | 98,418 | 89,637 | 87,872 | 52,937 | 55,892 | 67,816 | 91,227 | 351,155 | 267,872 |
Grocery & Other Merchandise |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |
Total revenue | 436,591 | 412,711 | 466,934 | 478,586 | 378,251 | 364,846 | 416,552 | 423,585 | 1,794,822 | 1,583,234 |
Gross profit |  |  |  |  |  |  |  |  |  |  |
Gross profit | 140,230 | 128,572 | 151,025 | 155,683 | 121,387 | 113,429 | 134,708 | 138,412 | 575,510 | 507,936 |
Prepared Food & Fountain |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |
Total revenue | 194,688 | 190,393 | 201,196 | 194,610 | 162,977 | 158,200 | 171,751 | 166,248 | 780,887 | 659,176 |
Gross profit |  |  |  |  |  |  |  |  |  |  |
Gross profit | 118,551 | 111,672 | 119,322 | 116,511 | 97,924 | 96,147 | 106,171 | 102,754 | 466,056 | 402,996 |
Other |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |
Total revenue | 12,546 | 12,399 | 11,313 | 10,864 | 11,386 | 11,235 | 10,602 | 10,042 | 47,122 | 43,265 |
Gross profit |  |  |  |  |  |  |  |  |  |  |
Gross profit | $ 12,534 | $ 12,384 | $ 11,298 | $ 10,848 | $ 11,372 | $ 11,222 | $ 10,590 | $ 10,028 | $ 47,064 | $ 43,212 |

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