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Litigation and Other Contingencies (Details) (Veliz lawsuit, USD $) In Millions | 12 Months Ended |  |
--- | --- | --- | ---
May 31, 2010 | Jul. 20, 2011 | Dec. 17, 2010
Veliz lawsuit |  |  |
Litigation and Other Contingencies |  |  |
Pre-tax impact of settlement, net of insurance proceeds | $ 19.5 |  |
Accrued aggregate cash payment for settlement |  | $ 1.9 | $ 22.8

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