Derivative Instruments And Hedging Activities (Schedule Of Fair Values Of Derivative Instruments On The Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2012		Feb. 29, 2012
Derivatives, Fair Value [Line Items]
Assets	$ 62		$ 398
Liabilities	(4,662)		(2,059)
Designated As Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	0		11
Liability derivatives	(4,600)		(1,643)
Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	0	[1]	11	[1]
Liability derivatives	0	[1]	0	[1]
Designated As Hedging Instrument [Member] | Interest Rate Swaps (2) [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	0	[2]	0	[2]
Liability derivatives	(4,600)	[2]	(1,643)	[2]
Not Designated As Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	62		387
Liability derivatives	(62)		(416)
Not Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	8	[1]	304	[1]
Liability derivatives	0	[1]	0	[1]
Not Designated As Hedging Instrument [Member] | Interest Rate Swaps (2) [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	0	[2]	0	[2]
Liability derivatives	(8)	[2]	(335)	[2]
Not Designated As Hedging Instrument [Member] | Interest Rate Caps [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	54	[1]	83	[1]
Liability derivatives	$ (54)	[1]	$ (81)	[1]

[1] Reported in other current assets on the consolidated balance sheets.

[2] Reported in accounts payable on the consolidated balance sheets.