Description of Business and Summary of Significant Accounting Policies Research and Development (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Research and Development [Abstract]
Research and Development Expense (Excluding Acquired in Process Cost)	$ 21,267	$ 15,890	$ 441
Development Service Revenue	$ 6,879	$ 3,686	$ 0

- Definition

The costs incurred in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, excluding in-process research and development acquired in a business combination consummated during the period. Excludes software research and development, which has a separate concept.

+ References+ Details