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Variable Interest Entities Investments in VIEs That Are Consolidated (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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| Investments In Variable Interest Entities That Are Consolidated Details [Abstract] |
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|
| Unpaid principal balance (Total CLO bank loan investments) |
$ 425,153,000 |
$ 474,515,000 |
| Excess unpaid principal balance over fair value (Total CLO bank loan investments) |
(863,000) |
(17,820,000) |
| Fair Value (Total CLO bank loan investments) |
424,290,000 |
456,695,000 |
| Unpaid principal balance (90 days or more past due) |
500,000 |
1,192,000 |
| Excess unpaid principal balance over fair value (90 days or more past due) |
(485,000) |
(617,000) |
| Fair Value (90 days or more past due) |
15,000 |
575,000 |
| Unpaid principal balance (Senior and subordinated note obligations) |
471,546,000 |
500,066,000 |
| Excess unpaid principal balance over fair value (Senior and subordinated note obligations) |
(24,941,000) |
(22,367,000) |
| Senior and subordinated note obligations |
446,605,000 |
477,699,000 |
| CLO Bank Loan Investments And Note Obligations Activity |
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|
| Net (losses) gains resulting from change in fair value of the CLO entitys investments |
20,200,000 |
(4,600,000) |
| Net gains (losses) resulting from an increase in the fair value of the CLOs note obligations. |
2,400,000 |
(33,600,000) |
| Minimum variable interest rate on the note obligations held by the CLO entitys (as a percent) |
0.21% |
|
| Maximum variable interest rate on the note obligations held by the CLO entitys (as a percent) |
1.50% |
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| Maturity date |
2019-04-20 |
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| Assets of consolidated collateralized loan obligation ("CLO") entity: |
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|
| Cash and cash equivalents |
36,758,000 |
16,521,000 |
| Bank loans and other investments |
430,583,000 |
462,586,000 |
| Other assets |
1,107,000 |
2,715,000 |
| Liabilities of consolidated CLO entity: |
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|
| Senior and subordinated note obligations |
446,605,000 |
477,699,000 |
| Other liabilities |
766,000 |
5,193,000 |
| Appropriated retained earnings (deficit) |
18,699,000 |
(3,867,000) |
| Total net interest in consolidated collateralized loan obligation entity |
2,378,000 |
2,797,000 |
| Direct equity interest in the Consolidated CLO entity |
1,900,000 |
2,300,000 |
| The CLOs net income (loss) recorded in the Company's Consolidated Statement of Income |
25,900,000 |
(31,000,000) |
| The third-party note holders of the CLO entities net gain (loss) recorded during the period included in net income attributable to non-controlling and other beneficial interests |
22,600,000 |
(34,500,000) |
| Net income attributable to Eaton Vance Corp. shareholders related to the consolidated CLO entity |
$ 3,300,000 |
$ 3,500,000 |