Average maturity period of debt securities.

No definition available.

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- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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- Details

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- Definition

Value of additional series of common stock issued to a trust (for example, a 'rabbi trust') set up specifically to accumulate stock for the sole purpose of distribution to participating employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 25

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6418455&loc=d3e16701-113920

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- Definition

Number of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees but not yet earned.

+ References

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- Definition

The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph s

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 158

-Paragraph 7

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (s)

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- Definition

The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References

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- Definition

The amounts in accumulated other comprehensive income related to transition assets (obligations), origination from the adoption of FAS 87 and 106, expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(3)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 264

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph j

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

-Topic 715

-SubTopic 30

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- Definition

The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

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- Definition

The amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts to cover vested benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Number 88

-Name Statement of Financial Accounting Standard (FAS)

-Paragraph 3

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(7)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 5

-Subparagraph h

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-Publisher FASB

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-Topic 715

-SubTopic 30

-Section 15

-Paragraph 6

-Subparagraph (a)(1)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 106

-Paragraph 518

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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- Definition

Amount of contributions made to multiemployer plans for each period for which a statement of income is presented. An employer may disclose total contributions to multiemployer plans without disaggregating the amounts attributable to pension plans and other postretirement benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 12

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-Publisher FASB

-Name Accounting Standards Codification

-Section 50

-Paragraph 1

-SubTopic 80

-Topic 715

-URI http://asc.fasb.org/extlink&oid=6958064&loc=d3e29142-114947

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Retirement and Postretirement Benefit Plans (Details Textual) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended																					12 Months Ended
	Feb. 29, 2012 Plans	Feb. 28, 2011	Feb. 28, 2010	Feb. 28, 2013 Pension Plans [Member]	Feb. 28, 2011 Pension Plans [Member]	Feb. 28, 2010 Pension Plans [Member]	Feb. 29, 2012 International Pension Plans [Member]	Feb. 28, 2011 International Pension Plans [Member]	Feb. 29, 2012 Profit Sharing [Member]	Feb. 28, 2011 Profit Sharing [Member]	Feb. 28, 2010 Profit Sharing [Member]	Feb. 29, 2012 Defined Contribution Plan [Member] U K Subsidiary [Member]	Feb. 28, 2011 Defined Contribution Plan [Member] U K Subsidiary [Member]	Feb. 28, 2010 Defined Contribution Plan [Member] U K Subsidiary [Member]	Feb. 29, 2012 Defined Contribution Plan [Member] Domestic [Member]	Feb. 28, 2011 Defined Contribution Plan [Member] Domestic [Member]	Feb. 28, 2010 Defined Contribution Plan [Member] Domestic [Member]	Feb. 28, 2010 Canadian Hourly Plan [Member]	Feb. 28, 2013 Supplemental Employee Retirement Plans, Defined Benefit [Member]	Feb. 29, 2012 Gibson Retirement Plan [Member]	Feb. 28, 2011 Gibson Retirement Plan [Member]	Feb. 29, 2012 Credit Rating A [Member]	Feb. 28, 2013 Postretirement benefit plan [Member]	Feb. 29, 2012 Postretirement benefit plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Corporate contributions to the profit sharing plan									$ 9,401,000	$ 9,759,000	$ 9,338,000	$ 2,012,000	$ 1,226,000	$ 1,745,000	$ 5,976,000	$ 4,875,000	$ 4,787,000
Estimated future employer contribution																			2,111,000	0	0		200,000
Settlement expense related to the plan					(3,000)	126,000												126,000
Amortization of estimated net loss				3,256,000																			0
Amortization of prior service cost				240,000																			(2,750,000)
Amortization of transition obligation				6,000
Expected long-term rate of return							5.50%	5.50%																7.00%
Maturity of debt securities																						2 years 6 months
Retirement Benefits (Textual) [Abstract]
Total pension expense for the multi-employer plan	513,000	467,000	417,000
Common shares in the trust	0.2	0.2
Value of the common shares	$ 2,772,000	$ 3,368,000
Number of unfunded plans	2