Benefit Plans (Schedule Of Fair Value Of Plan Assets) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014		Feb. 28, 2013		Feb. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Total	$ 124,712		$ 107,968		$ 96,897
Level 1 [Member] | Investment Receivables, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Total	(59)	[1]	2	[1]
Equity Securities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total	78,576		67,957
Equity Securities [Member] | Level 2 [Member] | Collective Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total	1,046		255
Equity Securities [Member] | U.S. Entities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets target allocation	95.00%		95.00%
Equity Securities [Member] | U.S. Entities [Member] | Level 2 [Member] | Collective Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets target allocation			100.00%	[1]
Equity Securities [Member] | Non-U.S. Entities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets target allocation	5.00%		5.00%
Equity Securities – International [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total	15,649	[2]	13,536	[2]
Equity Securities – International [Member] | Non-U.S. Entities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets target allocation	100.00%		100.00%
Fixed Income Securities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total	$ 29,500	[3]	$ 26,218	[3]
Fixed Income Securities [Member] | U.S. Entities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets target allocation	90.00%		85.00%
Fixed Income Securities [Member] | Non-U.S. Entities [Member] | Level 1 [Member] | Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets target allocation	10.00%		15.00%

[1] Includes pooled funds representing short-term instruments that include governments, their agencies and corporations and large-, mid- and small-cap companies primarily from the U.S. bank sector; nearly 100% of securities relate to U.S. entities as of February 28, 2014 (nearly 100% as of February 28, 2013).

[2] Includes large-, mid- and small-cap companies primarily from diverse U.S. industries including bank, oil and gas, retail and pharmaceutical sectors; approximately 95% of securities relate to U.S. entities and 5% of securities relate to non-U.S. entities as of February 28, 2014 (95% and 5%, respectively, as of February 28, 2013) .

[3] Consists of equity securities of primarily foreign corporations from diverse industries including bank, pharmaceutical, telecommunication, oil and gas, insurance and food sectors; 100% of securities relate to non-U.S. entities as of February 28, 2014 (100% relate to non-U.S. entities, as of February 28, 2013).