Description of Business and Summary of Significant Accounting Policies Goodwill Table (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Goodwill [Line Items]
Goodwill	$ 117,938	$ 146,680	$ 86,069
Goodwill, Impairment Loss	(32,163)	0
Hirschmann [Member]
Goodwill [Line Items]
Goodwill, Translation Adjustments	3,421
Goodwill, Acquired During Period		$ 60,611