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Consolidated Statements of Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2016 | Apr. 30, 2015 | Apr. 30, 2014
Income Statement [Abstract] |  |  |
Total revenue | $ 7,122,086 | $ 7,767,216 | $ 7,840,255
Cost of goods sold (exclusive of depreciation and amortization, shown separately below) | 5,508,465 | 6,327,431 | 6,618,239
Gross profit | 1,613,621 | 1,439,785 | 1,222,016
Operating expenses | 1,053,805 | 960,424 | 857,297
Depreciation and amortization | 170,937 | 156,111 | 131,160
Interest, net | 40,173 | 41,225 | 39,915
Income before income taxes | 348,706 | 282,025 | 193,644
Federal and state income taxes | 122,724 | 101,397 | 66,824
Net income | $ 225,982 | $ 180,628 | $ 126,820
Net income per common share |  |  |
Basic (in Dollars per share) | $ 5.79 | $ 4.66 | $ 3.30
Diluted (in Dollars per share) | $ 5.73 | $ 4.62 | $ 3.26

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