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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2015	Feb. 28, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 62,794	$ 64,817
Work-in-process	42,001	39,781
Finished goods	2,902	2,983
Total Inventory	$ 107,697us-gaap_InventoryNet	$ 107,581us-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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