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Income taxes (Detail) - Components of loss before income taxes (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
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Jul. 31, 2012
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Apr. 30, 2012
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Jan. 31, 2012
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Oct. 31, 2011
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Jul. 31, 2011
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Apr. 30, 2011
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Jan. 31, 2011
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Oct. 31, 2010
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Jul. 31, 2012
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Jul. 31, 2011
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Jul. 31, 2010
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| Loss before taxes | $ (29,074) | $ (3,445) | $ (4,076) | $ (4,326) | $ (4,199) | $ (2,002) | $ (5,562) | $ (1,060) | $ (40,921) | $ (12,823) | $ (22,261) |
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Domestic Tax Authority [Member]
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| Loss before taxes | (31,817) | (12,284) | (19,642) | ||||||||
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Foreign Tax Authority [Member]
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| Loss before taxes | $ (9,104) | $ (539) | $ (2,619) | ||||||||
| X | ||||||||||
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- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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