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Income Taxes - Statutory U.S. Federal Income Tax Rate to Company's Effective Tax Rate (Detail)	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Income Tax Disclosure [Abstract]
Statutory rate	35.00%	35.00%	35.00%
Provision for state income taxes, net of Federal income tax benefit	3.90%	3.70%	3.50%
Domestic production activities deduction	(4.80%)	(2.90%)	(2.60%)
Impairment of goodwill	20.50%
Other	3.90%	0.20%	0.60%
Total	58.50%	36.00%	36.50%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment loss.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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