Quarterly report pursuant to Section 13 or 15(d)

Goodwill Goodwill (Purchase Accounting Allocations)(Details Textual)

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Goodwill Goodwill (Purchase Accounting Allocations)(Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 29, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, purchase accounting allocations $ 9.3