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Concentration of Credit Risk and Significant Relationships (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||
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Oct. 31, 2011
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| Concentration Of Credit Risk And Significant Relationships Disclosure Table [Abstract] | |||||||||||||||||||||||||||||||||||||||||
| Components of portfolio and related funds that make up over 10% of the Company's total revenue |
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