Description of Business and Summary of Significant Accounting Policies Other Income (Expense) Table (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Nov. 30, 2012	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Other Income (Expense) Table [Abstract]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities				$ 0	$ 0	$ (1,225)
Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives				0	(2,670)	1,581
Gain (Loss) Related to Litigation Settlement			(8,365)	4,443	(1,661)	(3,621)
Foreign Currency Transaction Gain (Loss), before Tax	200	2,400		(1,079)	445	1,748
Interest Income (Expense), Nonoperating, Net				689	685	744
Rental Income, Nonoperating				1,519	1,120	531
Miscellaneous income				6,472	(552)	(3,145)
Other Nonoperating Income (Expense)				$ 12,044	$ (2,633)	$ (3,387)