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Consolidated Statements of Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2013
Income Statement [Abstract] |  |  |
Total revenue | $ 7,767,216 | $ 7,840,255 | $ 7,250,840
Cost of goods sold (exclusive of depreciation and amortization, shown separately below) | 6,327,431 | 6,618,239 | 6,179,771
Gross profit | 1,439,785 | 1,222,016 | 1,071,069
Operating expenses | 960,424 | 857,297 | 760,365
Depreciation and amortization | 156,111 | 131,160 | 111,823
Interest, net | 41,225 | 39,915 | 35,265
Income before income taxes | 282,025 | 193,644 | 163,616
Federal and state income taxes | 101,397 | 66,824 | 59,802
Net income | $ 180,628 | $ 126,820 | $ 103,814
Net income per common share |  |  |
Basic (in Dollars per share) | $ 4.66 | $ 3.30 | $ 2.71
Diluted (in Dollars per share) | $ 4.62 | $ 3.26 | $ 2.69

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