The total of financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition.

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+ Details

- Definition

The increase (decrease) resulting in a gain from the difference between the fair value and the carrying value, or in the comparative fair values, of trading securities held at each balance sheet date, that was included in earnings for the period.

+ References

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+ Details

- Definition

The increase (decrease) resulting in a loss from the difference between the fair value and the carrying value, or in the comparative fair values, of trading securities held at each balance sheet date, that was included in earnings for the period.

+ References

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+ Details

Investment Securities, Trading (Details) (USD $)	3 Months Ended		9 Months Ended
Investment Securities, Trading (Details) (USD $)	Jul. 31, 2013 Number	Jul. 31, 2012 Number	Jul. 31, 2013 Number	Jul. 31, 2012 Number	Oct. 31, 2012
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Total investment securities, trading	$ 249,125,000		$ 249,125,000		$ 190,253,000
Trading securities net unrealized loss	(5,000,000)	(1,000,000)
Trading securities net unrealized gain			10,900,000	5,800,000
Number of seeded sponsored funds	10	14	10	14
Number of seeded separately managed accounts	15	4	15	4
Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Total investment securities, trading	90,222,000		90,222,000		119,448,000
Debt Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Total investment securities, trading	$ 148,426,000		$ 148,426,000		$ 70,805,000