Derivative Instruments And Hedging Activities (Narrative) (Details) - Designated As Hedging Instrument - Interest Rate Swaps - Cash Flow Hedging - USD ($) $ in Millions	9 Months Ended
Nov. 30, 2017	Feb. 28, 2017
Derivative [Line Items]
Additional reclassification from AOCL to CAF income within the next 12 months	$ 0.5
Derivative notional amount	$ 2,020.0	$ 2,030.0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Details

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