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Derivative Instruments and Hedging Activities (Tables) | 3 Months Ended
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Aug. 31, 2012
Derivative Instruments and Hedging Activities |
Schedule of fair value carrying amount of our interest rate derivatives |
|  |  |  | Derivative |  | Derivative |
Derivatives designated |  |  |  | Assets |  | Liabilities |
as hedging instruments |  | Balance Sheet Classification |  | August 31, 2012 |  | August 31, 2012 |
Interest rate cap |  | Long-term assets |  | $ | 0.2 |  | $ | — |
Interest rate swap |  | Long-term liabilities |  | — |  | (5.0 | )
|  |  |  | Derivative |  | Derivative |
Derivatives designated |  |  |  | Assets |  | Liabilities |
as hedging instruments |  | Balance Sheet Classification |  | May 31, 2012 |  | May 31, 2012 |
Interest rate cap |  | Long-term assets |  | $ | 0.2 |  | $ | — |
Interest rate swap |  | Long-term liabilities |  | — |  | (4.5 | )

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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624163-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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