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Computation of Earnings Per Common Share (Tables) | 6 Months Ended
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Jan. 28, 2017
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share Reconciliation | The following table sets forth the computation of basic and diluted earnings per common share (dollars in thousands, except per share amounts):
|  | For the Three Months Ended |  | For the Six Months Ended
|  | January 28, 2017 |  | January 23, 2016 |  | January 28, 2017 |  | January 23, 2016
Net income available to common stockholders (numerator) |  | $ | 23,663 |  |  | $ | 15,473 |  |  | $ | 74,713 |  |  | $ | 46,297 |
Weighted-average number of common shares (denominator) |  | 31,531,834 |  |  | 32,662,942 |  |  | 31,480,660 |  |  | 32,767,088 |
Basic earnings per common share |  | $ | 0.75 |  |  | $ | 0.47 |  |  | $ | 2.37 |  |  | $ | 1.41 |
Weighted-average number of common shares |  | 31,531,834 |  |  | 32,662,942 |  |  | 31,480,660 |  |  | 32,767,088 |
Potential shares of common stock arising from stock options, and unvested restricted share units |  | 629,732 |  |  | 857,194 |  |  | 700,263 |  |  | 936,350 |
Total shares-diluted (denominator) |  | 32,161,566 |  |  | 33,520,136 |  |  | 32,180,923 |  |  | 33,703,438 |
Diluted earnings per common share |  | $ | 0.74 |  |  | $ | 0.46 |  |  | $ | 2.32 |  |  | $ | 1.37 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The weighted-average number of common shares outstanding used in the computation of diluted earnings per common share does not include the effect of the following instruments because their inclusion would have been anti-dilutive:
|  | For the Three Months Ended |  | For the Six Months Ended
|  | January 28, 2017 |  | January 23, 2016 |  | January 28, 2017 |  | January 23, 2016
Stock-based awards |  | 58,750 |  |  | 63,357 |  |  | 50,355 |  |  | 61,481 |
0.75% convertible senior notes due 2021 |  | 5,005,734 |  |  | 5,005,734 |  |  | 5,005,734 |  |  | 5,005,734 |
Warrants |  | 5,005,734 |  |  | 5,005,734 |  |  | 5,005,734 |  |  | 5,005,734 |
Total anti-dilutive weighted shares excluded from the calculation of earnings per common share |  | 10,070,218 |  |  | 10,074,825 |  |  | 10,061,823 |  |  | 10,072,949 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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