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Inventories - Components of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2014	Feb. 28, 2014
Inventory Disclosure [Abstract]
Raw material	$ 17,775	$ 16,400
Work-in-process	8,705	14,386
Finished goods	98,701	99,309
Inventories	$ 125,181us-gaap_InventoryNet	$ 130,095us-gaap_InventoryNet

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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