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SHARE-BASED COMPENSATION PLANS (Details) (USD $) | 12 Months Ended |  | 12 Months Ended |  |  | 0 Months Ended |  | 0 Months Ended |  | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |  | 12 Months Ended
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Feb. 28, 2014 item | Feb. 28, 2013 | Feb. 29, 2012 | Feb. 28, 2014 SG&A | Feb. 28, 2013 SG&A | Feb. 29, 2012 SG&A | Feb. 28, 2014 Former CEO Separation Agreement | Feb. 28, 2014 Stock options SG&A | Feb. 28, 2013 Stock options SG&A | Feb. 29, 2012 Stock options SG&A | Feb. 28, 2014 Stock compensation Former CEO SG&A Separation Agreement | Feb. 28, 2014 Directors Stock compensation SG&A | Feb. 28, 2013 Directors Stock compensation SG&A | Feb. 29, 2012 Directors Stock compensation SG&A | Feb. 28, 2014 Performance-based Restricted Stock Award SG&A | Feb. 28, 2013 Performance-based Restricted Stock Award SG&A | Feb. 28, 2014 Performance-based RSUs SG&A | Aug. 24, 2008 1998 Plan | Feb. 28, 2014 1998 Plan Stock options | Aug. 24, 2008 1998 Plan Stock options Minimum | Aug. 24, 2008 1998 Plan Stock options Maximum | Aug. 24, 2008 1998 Plan Vesting period one Stock options | Aug. 24, 2008 1998 Plan Vesting period two Stock options | Aug. 24, 2008 1998 Plan Vesting period three Stock options | Jun. 05, 2005 1995 Directors' Plan | Jun. 05, 2005 1995 Directors' Plan Stock options | Feb. 28, 2014 1995 Directors' Plan Stock options | Feb. 28, 2014 2008 Stock Incentive Plan | Feb. 28, 2014 2008 Stock Incentive Plan Stock options | Feb. 28, 2014 2008 Stock Incentive Plan Stock options Minimum | Feb. 28, 2014 2008 Stock Incentive Plan Stock options Maximum | Feb. 28, 2014 2008 Stock Incentive Plan Restricted Stock Award | Feb. 28, 2013 2008 Stock Incentive Plan Restricted Stock Award | Feb. 28, 2014 2008 Stock Incentive Plan Restricted Stock Award Former CEO | Feb. 28, 2013 2008 Stock Incentive Plan Restricted Stock Award Former CEO | Feb. 28, 2014 2008 Stock Incentive Plan Restricted Stock Award Grant as of February 28, 2013 Former CEO | Feb. 28, 2014 2008 Stock Incentive Plan Performance-based RSUs | Feb. 28, 2013 2008 Stock Incentive Plan Performance-based RSUs | Mar. 02, 2012 2008 Stock Incentive Plan Performance-based RSUs Former CEO | Apr. 22, 2014 2008 Stock Incentive Plan Performance-based RSUs Grant on March 1, 2012 Former CEO | Feb. 28, 2014 2008 Stock Incentive Plan Performance-based RSUs Grant on March 1, 2012 Former CEO | Apr. 22, 2013 2008 Stock Incentive Plan Performance-based RSUs Grant on March 1, 2012 Former CEO | Feb. 28, 2014 2008 Stock Incentive Plan Performance-based RSUs Grant on March 1, 2012 Former CEO | Feb. 28, 2014 2008 Directors Plan | Feb. 28, 2014 2008 Directors Plan Restricted Stock Award | Feb. 28, 2013 2008 Directors Plan Restricted Stock Award | Feb. 29, 2012 2008 Directors Plan Restricted Stock Award | Feb. 28, 2014 2008 Stock Purchase Plan | Feb. 28, 2013 2008 Stock Purchase Plan | Feb. 29, 2012 2008 Stock Purchase Plan | Feb. 28, 2014 2008 Stock Purchase Plan SG&A | Feb. 28, 2013 2008 Stock Purchase Plan SG&A | Feb. 29, 2012 2008 Stock Purchase Plan SG&A
SHARE-BASED COMPENSATION PLANS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of expired share-based compensation plans | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of active share-based compensation plans | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock covered for issuance under share-based compensation plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,750,000 |  |  |  |  |  |  | 980,000 |  |  | 3,750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 175,000 |  |  |  | 350,000 |  |  |  |  |
Vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year | 4 years | 5 years |  | 1 year |  |  |  | 4 years | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of award |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 years | 10 years |  |  |  |  | 10 years |  |  |  | 7 years | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,100 |  |  |  |  |  |  |  | 20,000 |  | 788,831 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock disclosure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of awards granted (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 62,000 | 160,000 | 62,304 | 159,666 |  |  | 700,000 | 700,000 |  |  |  |  |  | 10,512 | 10,512 | 18,000 |  |  |  |  |  |
Fair values at the date of grant of awards granted (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 67.10 | $ 35.55 | $ 67.10 | $ 35.55 |  |  | $ 32.88 | $ 32.88 |  |  |  |  |  | $ 41.26 | $ 31.54 | $ 29.48 |  |  |  |  |  |
Share-based compensation plans disclosure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock units/awards outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 62,000 | 160,000 |  |  |  | 100,000 | 700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative number of shares granted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 58,624 |  |  |  |  |  |  |  |
Maximum withholding percentage of employee wages or salaries for the purchase of shares of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.00% |  |  |  |  |
Purchase price for shares acquired under the plan as a percentage of the share's fair market value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85.00% |  |  |  |  |
Shares of common stock acquired by plan participants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 41,328 | 39,728 | 41,868 |  |  |
Price of common stock acquired by plan participants (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 32.66 | $ 26.68 | $ 24.17 |  |  |
Number of shares available for future issue under the plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,350,699 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 116,376 |  |  |  | 158,213 |  |  |  |  |
SHARE-BASED PAYMENT EXPENSE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment expense |  |  |  | $ 31,869,000 | $ 6,055,000 | $ 2,928,000 |  | $ 2,380,000 | $ 2,298,000 | $ 2,061,000 | $ 15,000,000 | $ 619,000 | $ 473,000 | $ 531,000 | $ 7,968,000 | $ 2,988,000 | $ 5,478,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 424,000 | $ 296,000 | $ 336,000
Less income tax benefits | (5,709,000) | (858,000) | (99,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment expense, net of income tax benefits | 26,160,000 | 5,197,000 | 2,829,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings per share impact of share-based payment expense: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (in dollars per share) | $ 0.82 | $ 0.16 | $ 0.09 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted (in dollars per share) | $ 0.81 | $ 0.16 | $ 0.09 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of awards vested (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 160,000 |  |  |  | 159,666 | 100,000 |  |  | 100,000 | 66,600 | 33,400 | 100,000 |  |  |  |  |  |  |  |  |  |
Vested in period, fair value at the date of grant of the award (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 35.55 |  |  |  |  | $ 32.88 |  |  | $ 32.88 | $ 32.88 |  |  |  |  |  |  |  |  |  |  |  |
Common stock to be issued in connection with settlement of separation compensation |  |  |  |  |  |  | $ 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 + Details
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- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Number of shares issued during the period as a result of an employee stock purchase plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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