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Other Expense (Income), Net (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 28, 2013 | Nov. 30, 2012 | Aug. 31, 2012 | Feb. 29, 2012 | Nov. 30, 2012 | Feb. 28, 2013 | Feb. 29, 2012
Component of Other Income, Nonoperating [Line Items] |  |  |  |  |  |  |
Royalty (income), net | $ (848) |  |  | $ (438) |  | $ (1,574) | $ (1,175)
Loss on Brazil operational repositioning | 6,087 |  |  |  |  | 6,087 |
Loss on Kemrock conversion option |  | (800) | (8,200) |  | (9,000) | 9,030 |
(Income) loss related to unconsolidated equity affiliates | (525) |  |  | (961) |  | 40,287 | (7,194)
Other expense (income), net | $ 4,714 |  |  | $ (1,399) |  | $ 53,830 | $ (8,369)

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