Pension Plan - Summary of Pension Expense Composed of Components Included in Cost of Goods Sold and Selling, General and Administrative Expenses (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013
Components of net periodic benefit cost
Service cost	$ 1,122us-gaap_DefinedBenefitPlanServiceCost	$ 1,262us-gaap_DefinedBenefitPlanServiceCost	$ 1,283us-gaap_DefinedBenefitPlanServiceCost
Interest cost	2,447us-gaap_DefinedBenefitPlanInterestCost	2,402us-gaap_DefinedBenefitPlanInterestCost	2,402us-gaap_DefinedBenefitPlanInterestCost
Expected return on plan assets	(3,856)	(3,490)	(3,208)
Amortization of:
Prior service cost	(145)	(145)	(145)
Unrecognized net loss	1,524	2,052	1,823
Net periodic benefit cost	1,092	2,081	2,155
Recognized in Other comprehensive Income
Net actuarial loss (gain)	11,224	(4,600)	4,370
Amortization of net actuarial loss	(1,524)	(2,052)	(1,823)
Amortization of prior service credit	145	145	145
Net of recognized in Other comprehensive Income	(6,072)	3,976	(1,667)
Total recognized in net periodic pension cost and other comprehensive income	$ 10,937	$ (4,426)	$ 4,847

Pension Plan - Summary of Pension Expense Composed of Components Included in Cost of Goods Sold and Selling, General and Administrative Expenses (Detail) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Feb. 28, 2015

Feb. 28, 2014

Feb. 28, 2013

Components of net periodic benefit cost

Service cost

$ 1,122us-gaap_DefinedBenefitPlanServiceCost

$ 1,262us-gaap_DefinedBenefitPlanServiceCost

$ 1,283us-gaap_DefinedBenefitPlanServiceCost

Interest cost

2,447us-gaap_DefinedBenefitPlanInterestCost

2,402us-gaap_DefinedBenefitPlanInterestCost

Expected return on plan assets

(3,856)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets

(3,490)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets

(3,208)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets

Amortization of:

Prior service cost

(145)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

Unrecognized net loss

1,524us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses

2,052us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses

1,823us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses

Net periodic benefit cost

1,092us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost

2,081us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost

2,155us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost

Recognized in Other comprehensive Income

Net actuarial loss (gain)

11,224us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax

(4,600)us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax

4,370us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax

Amortization of net actuarial loss

(1,524)ebf_OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetActuarialGainLossNetOfTax

(2,052)ebf_OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetActuarialGainLossNetOfTax

(1,823)ebf_OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetActuarialGainLossNetOfTax

Amortization of prior service credit

145us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

Net of recognized in Other comprehensive Income

(6,072)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

3,976us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

(1,667)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

Total recognized in net periodic pension cost and other comprehensive income

$ 10,937ebf_DefinedBenefitPlanAmountsRecognizedInNetPeriodicPensionCostsAndOtherComprehensiveIncomeLossNetOfTax

$ (4,426)ebf_DefinedBenefitPlanAmountsRecognizedInNetPeriodicPensionCostsAndOtherComprehensiveIncomeLossNetOfTax

$ 4,847ebf_DefinedBenefitPlanAmountsRecognizedInNetPeriodicPensionCostsAndOtherComprehensiveIncomeLossNetOfTax

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Defined Benefit Plan Amounts Recognized In Net Periodic Pension Costs And Other Comprehensive Income Loss Net Of Tax

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Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Actuarial Gain Loss Net Of Tax

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The amount of gains or losses recognized in net periodic benefit cost.

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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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Amount after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans.

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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