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Quarterly Financial Information, Unaudited (Notes) | 12 Months Ended
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Feb. 28, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly financial information, Unaudited | Selected quarterly financial data (Unaudited)
|  | Quarter ended
|  | May 31, 2016 |  | August 31, 2016 |  | November 30, 2016 |  | February 28, 2017
|  | (Restated) |  | (Restated) |  | (Restated) |  | (Restated)
|  | (in thousands, except per share data)
Net sales |  | $ | 250,366 |  |  | $ | 200,790 |  |  | $ | 228,116 |  |  | $ | 184,266 |
Gross profit |  | 65,128 |  |  | 42,104 |  |  | 51,297 |  |  | 46,803 |
Net income |  | 22,189 |  |  | 10,159 |  |  | 16,646 |  |  | 12,270 |
Basic earnings per share |  | 0.86 |  |  | 0.39 |  |  | 0.64 |  |  | 0.47 |
Diluted earnings per share |  | 0.85 |  |  | 0.39 |  |  | 0.64 |  |  | 0.47 |
|  | Quarter ended
|  | May 31, 2015 |  | August 31, 2015 |  | November 30, 2015 |  | February 29, 2016
|  | (Restated) |  | (Restated) |  | (Restated) |  | (Restated)
|  | (in thousands, except per share data)
Net sales |  | $ | 240,440 |  |  | $ | 199,670 |  |  | $ | 241,596 |  |  | $ | 207,694 |
Gross profit |  | 63,704 |  |  | 49,702 |  |  | 61,288 |  |  | 53,424 |
Net income |  | 22,674 |  |  | 14,866 |  |  | 22,822 |  |  | 15,182 |
Basic earnings per share |  | 0.88 |  |  | 0.58 |  |  | 0.88 |  |  | 0.59 |
Diluted earnings per share |  | 0.88 |  |  | 0.57 |  |  | 0.88 |  |  | 0.58 |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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