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SIGNIFICANT ACCOUNTING POLICIES (Details 8) - USD ($) $ / shares in Units, $ 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 | Oct. 06, 2017
Earnings Per Share |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding | 50,431,000 | 50,424,000 | 50,449,000 | 50,817,000 | 50,617,000 | 50,601,000 | 50,587,000 | 50,475,000 | 50,530,000 | 50,570,000 | 50,313,000 |
Net effect of dilutive common stock equivalents based upon the treasury stock method |  |  |  |  |  |  |  |  | 307,000 | 205,000 | 86,000 |
Diluted weighted average shares outstanding | 50,901,000 | 50,751,000 | 50,741,000 | 50,957,000 | 50,947,000 | 50,801,000 | 50,755,000 | 50,599,000 | 50,837,000 | 50,775,000 | 50,399,000 |
Potential anti-dilutive share-based payment awards excluded from the computation above |  |  |  |  |  |  |  |  | 93,000 | 44,000 | 84,000 |
Net Income | $ 32,788 | $ 51,891 | $ 50,486 | $ 30,505 | $ 38,869 | $ 36,587 | $ 25,482 | $ 29,217 | $ 165,670 | $ 130,155 | $ 125,766 |
Net income (in dollars per share) |  |  |  |  |  |  |  |  | $ 3.28 | $ 2.57 | $ 2.50 |
Net income (in dollars per share) |  |  |  |  |  |  |  |  | $ 3.26 | $ 2.56 | $ 2.50 |
Treasury Stock [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  |  |  |  | $ 200,000
Treasury Stock, Shares, Acquired |  |  |  |  |  |  |  |  | 614,660 |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  |  |  |  |  | $ (24,231) |  |  |
Shipping and Handling Fees and Costs |  |  |  |  |  |  |  |  |  |  |  |
Outbound shipping and handling costs, excluding employee benefit expenses |  |  |  |  |  |  |  |  | $ 582,900 | $ 517,200 | $ 467,500 |

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