Stock And Stock-Based Incentive Plans (Outstanding Stock Options) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
Nov. 30, 2014	Feb. 28, 2014
$11.43 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower range	$ 11.43
Options Outstanding, Number of Shares	458
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	1 year 4 months 24 days
Options Outstanding, Weighted Average Exercise Price	$ 11.43
Options Exercisable, Number of Shares	458
Options Exercisable, Weighted Average Exercise Price	$ 11.43
$13.19 To $19.82 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower range	$ 13.19
Range of Exercise Prices, upper range	$ 19.82
Options Outstanding, Number of Shares	358
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	0 years 8 months 12 days
Options Outstanding, Weighted Average Exercise Price	$ 15.65
Options Exercisable, Number of Shares	358
Options Exercisable, Weighted Average Exercise Price	$ 15.65
$19.98 To $25.39 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower range	$ 19.98
Range of Exercise Prices, upper range	$ 25.39
Options Outstanding, Number of Shares	1,250
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 4 months 24 days
Options Outstanding, Weighted Average Exercise Price	$ 25.18
Options Exercisable, Number of Shares	1,250
Options Exercisable, Weighted Average Exercise Price	$ 25.18
$28.81 To $32.69 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower range	$ 28.81
Range of Exercise Prices, upper range	$ 32.69
Options Outstanding, Number of Shares	3,340
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	3 years 10 months 24 days
Options Outstanding, Weighted Average Exercise Price	$ 32.09
Options Exercisable, Number of Shares	2,094
Options Exercisable, Weighted Average Exercise Price	$ 32.21
$33.11 To $49.25 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower range	$ 33.11
Range of Exercise Prices, upper range	$ 49.25
Options Outstanding, Number of Shares	3,594
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 9 months 18 days
Options Outstanding, Weighted Average Exercise Price	$ 43.90
Options Exercisable, Number of Shares	611
Options Exercisable, Weighted Average Exercise Price	$ 42.69
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number of Shares	9,000
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 2 months 12 days
Options Outstanding, Weighted Average Exercise Price	$ 34.17	$ 27.02
Options Exercisable, Number of Shares	4,771
Options Exercisable, Weighted Average Exercise Price	$ 28.47

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option 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)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for option awards outstanding, 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 (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ 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 (g)

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- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ 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)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ 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 (g)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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