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Computation of Earnings Per Common Share (Tables) | 9 Months Ended
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Oct. 27, 2018
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 Nine Months Ended
| October 27, 2018 |  | October 28, 2017 |  | October 27, 2018 |  | October 28, 2017
Net income available to common stockholders (numerator) | $ | 27,830 |  |  | $ | 28,776 |  |  | $ | 74,961 |  |  | $ | 111,280 |
Weighted-average number of common shares (denominator) | 31,246,591 |  |  | 31,061,448 |  |  | 31,214,172 |  |  | 31,167,753 |
Basic earnings per common share | $ | 0.89 |  |  | $ | 0.93 |  |  | $ | 2.40 |  |  | $ | 3.57 |
Weighted-average number of common shares | 31,246,591 |  |  | 31,061,448 |  |  | 31,214,172 |  |  | 31,167,753 |
Potential shares of common stock arising from stock options, and unvested restricted share units | 587,951 |  |  | 830,126 |  |  | 605,992 |  |  | 654,353 |
Potential shares of common stock issuable on conversion of 0.75% convertible senior notes due 2021(1) | — |  |  | — |  |  | 245,065 |  |  | — |
Total shares-diluted (denominator) | 31,834,542 |  |  | 31,891,574 |  |  | 32,065,229 |  |  | 31,822,106 |
Diluted earnings per common share | $ | 0.87 |  |  | $ | 0.90 |  |  | $ | 2.34 |  |  | $ | 3.50 |
Anti-dilutive weighted shares excluded from the calculation of earnings per common share:
Stock-based awards | 121,722 |  |  | 125,074 |  |  | 68,395 |  |  | 102,268 |
0.75% convertible senior notes due 2021 | 5,005,734 |  |  | 5,005,734 |  |  | 4,760,669 |  |  | 5,005,734 |
Warrants | 5,005,734 |  |  | 5,005,734 |  |  | 5,005,734 |  |  | 5,005,734 |
Total | 10,133,190 |  |  | 10,136,542 |  |  | 9,834,798 |  |  | 10,113,736 |
(1) Under the treasury stock method, the convertible senior notes will have a dilutive impact on earnings per common share if the Company’s average stock price for the period exceeds the $96.89 per share conversion price for the convertible senior notes. The warrants associated with the Company’s convertible senior notes will have a dilutive impact on earnings per common share if the Company’s average stock price for the period exceeds the $130.43 per share warrant strike price. During the first and second quarters of fiscal 2019, the Company’s average stock price of $110.46 and $99.27, respectively, each exceeded the conversion price for the convertible senior notes. As a result, shares presumed to be issuable under the convertible senior notes that were dilutive during the first and second quarters of fiscal 2019 are included in the calculation of diluted earnings per share for the nine months ended October 27, 2018. As the Company’s average stock price did not exceed the strike price for the warrants, the underlying common shares were anti-dilutive as reflected in the table above.

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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://fasb.org/us-gaap/role/ref/legacyRef -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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