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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. 30, 2016 | Apr. 30, 2016 | Jan. 30, 2016 | Oct. 31, 2015 | Aug. 01, 2015 | May 02, 2015 | Jan. 31, 2015 | Nov. 01, 2014 | Jul. 30, 2016 | Aug. 01, 2015 | Aug. 02, 2014
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 2,213,821 | $ 2,132,104 | $ 2,047,712 | $ 2,076,649 | $ 2,061,313 | $ 2,114,643 | $ 2,016,546 | $ 1,992,476 | $ 8,470,286 | $ 8,184,978 | $ 6,794,447
Gross profit | 345,463 | 322,433 | 297,518 | 313,937 | 316,406 | 325,914 | 299,199 | 318,996 | 1,279,351 | 1,260,515 | 1,127,645
Income before income taxes | 57,669 | 62,676 | 37,742 | 50,135 | 59,560 | 69,571 | 46,023 | 54,615 | 208,222 | 229,769 | 207,408
Net Income | $ 34,681 | $ 38,271 | $ 22,683 | $ 30,131 | $ 36,098 | $ 41,750 | $ 27,844 | $ 33,042 | $ 125,766 | $ 138,734 | $ 125,482
Per common share income |  |  |  |  |  |  |  |  |  |  |
Basic: (in dollars per share) | $ 0.69 | $ 0.76 | $ 0.45 | $ 0.60 | $ 0.72 | $ 0.83 | $ 0.56 | $ 0.66 |  |  |
Net income (in dollars per share) |  |  |  |  |  |  |  |  | $ 2.50 | $ 2.77 | $ 2.53
Diluted: (in dollars per share) | $ 0.69 | $ 0.76 | $ 0.45 | $ 0.60 | $ 0.72 | $ 0.83 | $ 0.55 | $ 0.66 |  |  |
Net income (in dollars per share) |  |  |  |  |  |  |  |  | $ 2.50 | $ 2.76 | $ 2.52
Weighted average basic shares of common stock | 50,381 | 50,350 | 50,326 | 50,194 | 50,091 | 50,079 | 50,025 | 49,889 | 50,313 | 50,021 | 49,602
Weighted average diluted shares of common stock | 50,516 | 50,379 | 50,388 | 50,313 | 50,330 | 50,348 | 50,277 | 50,113 | 50,399 | 50,267 | 49,888
High |  |  |  |  |  |  |  |  |  |  |
Per common share income |  |  |  |  |  |  |  |  |  |  |
Market Price (in dollars per share) | $ 52.18 | $ 43.02 | $ 52.07 | $ 55.69 | $ 69.26 | $ 83.91 | $ 80.77 | $ 69.51 | $ 55.69 | $ 83.91 |
Low |  |  |  |  |  |  |  |  |  |  |
Per common share income |  |  |  |  |  |  |  |  |  |  |
Market Price (in dollars per share) | $ 33.16 | $ 29.75 | $ 33.85 | $ 44.05 | $ 45.26 | $ 66.34 | $ 67.71 | $ 58.48 | $ 29.75 | $ 45.26 |

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