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QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 28, 2018 | Apr. 28, 2018 | Jan. 27, 2018 | Oct. 28, 2017 | Jul. 29, 2017 | Apr. 29, 2017 | Jan. 28, 2017 | Oct. 29, 2016 | Jul. 28, 2018 | Jul. 29, 2017 | Jul. 30, 2016
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 2,592,248 | $ 2,648,879 | $ 2,528,011 | $ 2,457,545 | $ 2,341,033 | $ 2,369,556 | $ 2,285,518 | $ 2,278,364 | $ 10,226,683 | $ 9,274,471 | $ 8,470,286
Gross profit | 375,942 | 408,087 | 371,522 | 367,216 | 368,599 | 366,361 | 344,945 | 349,016 | 1,522,767 | 1,428,921 | 1,279,351
Income before income taxes | 46,032 | 77,834 | 36,485 | 52,394 | 63,537 | 60,325 | 42,028 | 48,533 | 212,745 | 214,423 | 208,222
Net Income | $ 32,788 | $ 51,891 | $ 50,486 | $ 30,505 | $ 38,869 | $ 36,587 | $ 25,482 | $ 29,217 | $ 165,670 | $ 130,155 | $ 125,766
Per common share income |  |  |  |  |  |  |  |  |  |  |
Basic: (in dollars per share) | $ 0.65 | $ 1.03 | $ 1.00 | $ 0.60 | $ 0.77 | $ 0.72 | $ 0.50 | $ 0.58 |  |  |
Net income (in dollars per share) |  |  |  |  |  |  |  |  | $ 3.28 | $ 2.57 | $ 2.50
Diluted: (in dollars per share) | $ 0.64 | $ 1.02 | $ 0.99 | $ 0.60 | $ 0.76 | $ 0.72 | $ 0.50 | $ 0.58 |  |  |
Net income (in dollars per share) |  |  |  |  |  |  |  |  | $ 3.26 | $ 2.56 | $ 2.50
Weighted average basic shares of common stock | 50,431 | 50,424 | 50,449 | 50,817 | 50,617 | 50,601 | 50,587 | 50,475 | 50,530 | 50,570 | 50,313
Weighted average diluted shares of common stock | 50,901 | 50,751 | 50,741 | 50,957 | 50,947 | 50,801 | 50,755 | 50,599 | 50,837 | 50,775 | 50,399
High |  |  |  |  |  |  |  |  |  |  |
Per common share income |  |  |  |  |  |  |  |  |  |  |
Market Price (in dollars per share) | $ 47.73 | $ 49.81 | $ 52.69 | $ 44.94 | $ 42.38 | $ 45.99 | $ 49.39 | $ 50.06 | $ 52.69 | $ 50.06 |
Low |  |  |  |  |  |  |  |  |  |  |
Per common share income |  |  |  |  |  |  |  |  |  |  |
Market Price (in dollars per share) | $ 32.03 | $ 40.88 | $ 38.04 | $ 32.52 | $ 34.60 | $ 39.47 | $ 40.81 | $ 38.55 |  | $ 34.60 |

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