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Investments In Equity Method Investees (Details) (USD $)
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12 Months Ended |
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Oct. 31, 2012
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Oct. 31, 2011
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Oct. 31, 2010
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Total equity method sponsored funds |
$ 66,558,000 |
$ 28,488,000 |
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| Equity Method Investees [Abstract] |
|
|
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| Hexvest assets |
25,182,000 |
|
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| Other investees assets |
363,539,000 |
|
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| Total assets |
388,721,000 |
323,126,000 |
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| Hexavest liabilities |
11,544,000 |
|
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| Other investees liabilities |
14,351,000 |
|
|
| Total liabilities |
25,895,000 |
415,000 |
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| Hexavest revenue |
10,691,000 |
|
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| Other investees revenue |
8,788,000 |
|
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| Total revenue |
19,479,000 |
20,609,000 |
41,715,000 |
| Hexavest operating income |
6,060,000 |
|
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| Other investees operating income |
5,286,000 |
|
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| Total operating income |
11,346,000 |
1,469,000 |
5,069,000 |
| Hexavest net income |
4,714,000 |
|
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| Other investees net income |
34,339,000 |
|
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| Total net income |
39,053,000 |
93,896,000 |
3,741,000 |
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Lloyd George Management Limited [Member]
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|
|
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Realized gains |
2,400,000 |
5,500,000 |
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Private Equity Partnership [Member]
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|
|
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| Schedule Of Equity Method Investments [Line Items] |
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| Equity method investment ownership percentage |
7.00% |
7.00% |
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| Equity method investment aggregate cost |
9,800,000 |
18,400,000 |
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Eaton Vance Tax-Advantaged Bond Strategies Long Term Fund [Member]
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|
|
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Equity method investment ownership percentage |
31.00% |
|
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| Equity method investment aggregate cost |
10,346,000 |
|
|
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AGF Floating Rate Income Fund [Member]
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Equity method investment ownership percentage |
21.00% |
|
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| Equity method investment aggregate cost |
15,334,000 |
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|
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Eaton Vance Parametric Structured Currency Fund [Member]
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| Schedule Of Equity Method Investments [Line Items] |
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| Equity method investment ownership percentage |
33.00% |
|
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| Equity method investment aggregate cost |
1,043,000 |
|
|
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Eaton Vance Parametric Structured Commodity Strategy Fund [Member]
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|
|
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Equity method investment ownership percentage |
|
47.00% |
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| Equity method investment aggregate cost |
|
9,190,000 |
|
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Eaton Vance Real Estate Fund [Member]
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|
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Equity method investment ownership percentage |
48.00% |
|
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| Equity method investment aggregate cost |
16,494,000 |
|
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Eaton Vance Parametric Option Absolute Return Strategy Fund[ Member]
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| Schedule Of Equity Method Investments [Line Items] |
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|
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| Equity method investment ownership percentage |
|
27.00% |
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| Equity method investment aggregate cost |
|
19,298,000 |
|
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Eaton Vance Richard Bernstein All Asset Strategy Fund [Member]
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|
|
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| Schedule Of Equity Method Investments [Line Items] |
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| Equity method investment ownership percentage |
44.00% |
|
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| Equity method investment aggregate cost |
23,341,000 |
|
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Hexavest [Member]
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|
|
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| Schedule Of Equity Method Investments [Line Items] |
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| Equity method investment ownership percentage |
49.00% |
|
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| Equity method investment aggregate cost |
181,200,000 |
|
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| Equity method investment underlying equity in net assets |
3,400,000 |
|
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| Intangible assets net excluding goodwill, equity in investee |
42,700,000 |
|
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| Goodwill, equity in investee |
146,600,000 |
|
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| Deferred tax liability, equity in investee |
$ 11,500,000 |
|
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| Additional interest that may be purchased by the company |
26.00% |
|
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| Weighted-average remaining amortization period on Hexavest intangible assets |
17 years |
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