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Restructuring Reserve (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	$ 235	$ 202	$ 1,424
Restructuring Charges		583	1,324
Cash Payment	(235)	(550)	(2,546)
Restructuring Reserve Ending Balance		235	202
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	148	202	1,424
Restructuring Charges		430	1,324
Cash Payment	(148)	(484)	(2,546)
Restructuring Reserve Ending Balance		148	202
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	87	0	0
Restructuring Charges		153	0
Cash Payment	(87)	(66)	0
Restructuring Reserve Ending Balance		$ 87	$ 0

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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