EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
May 31, 2016	May 31, 2015
EARNINGS PER SHARE [Abstract]
Net income (loss)	$ (2,659)	$ 4,059
Basic weighted average number of common shares outstanding	36,699	35,964
Effect of stock options and restricted stock units computed on treasury stock method		702
Diluted weighted average number of common shares outstanding	36,699	36,666
Shares subject to anti-dilutive stock options and restricted stock-based awards excluded from calculation		137
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Conversion price (in dollars per share)	$ 27.594

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The price per share of the conversion feature embedded in the debt instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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