Variable Interest Entities Investments in VIEs That Are Consolidated (Details) - USD ($)
|
12 Months Ended |
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2014 |
| Investments In Variable Interest Entities That Are Consolidated Details [Line Items] |
|
|
|
| Senior and subordinated note obligations |
$ 0
|
$ 397,039,000
|
|
| Assets: |
|
|
|
| Cash and cash equivalents |
0
|
162,704,000
|
|
| Bank loan investments |
0
|
304,250,000
|
|
| Other assets |
0
|
128,000
|
|
| Liabilities: |
|
|
|
| Other liabilities |
$ 0
|
70,814,000
|
|
| Eaton Vance CLO 2015-1 [Member] |
|
|
|
| Investments In Variable Interest Entities That Are Consolidated Details [Line Items] |
|
|
|
| Residual interest percentage sold in the CLO |
16.10%
|
|
|
| Date on which the CLO entity was deconsolidated |
Sep. 21, 2016
|
|
|
| Unpaid principal balance (Total CLO bank loan investments) |
|
306,483,000
|
|
| Unpaid principal balance over fair value (Total CLO bank loan investments) |
|
(2,233,000)
|
|
| Fair Value (Total CLO bank loan investments) |
|
304,250,000
|
|
| Unpaid principal balance (90 days or more past due) |
|
0
|
|
| Unpaid principal balance over fair value (90 days or more past due) |
|
0
|
|
| Fair Value (90 days or more past due) |
|
0
|
|
| Unpaid principal balance (Senior and subordinated note obligations) |
|
397,039,000
|
|
| Unpaid principal balance over fair value (Senior and subordinated note obligations) |
|
0
|
|
| Senior and subordinated note obligations |
|
397,039,000
|
|
| Net gains (losses) resulting from change in fair value of the CLO entity's bank loans and other investments |
$ 2,400,000
|
(28,550)
|
|
| Net gains (losses) resulting from change in the fair value of the CLO note obligations |
3,700,000
|
|
|
| Combined consolidated CLO entity net gains (losses) |
6,100,000
|
(28,550)
|
|
| The third-party note holders of the CLO entities net income (loss) recorded during the period included in net income attributable to non-controlling and other beneficial interests |
(9,800,000)
|
4,400,000
|
|
| The CLO's net income (loss) recorded in the Company's Consolidated Statement of Income |
10,600,000
|
(4,200,000)
|
|
| Net income (losses) attributable to Eaton Vance Corp. shareholders related to the consolidated CLO entity |
800,000
|
200,000
|
|
| Gain on disposal of interest in the subordinated obligation of CLO entity |
100,000
|
|
|
| Liabilities: |
|
|
|
| Direct equity interest in the Consolidated CLO entity |
|
$ 4,600,000
|
|
| Eaton Vance CLO IX [Member] |
|
|
|
| Investments In Variable Interest Entities That Are Consolidated Details [Line Items] |
|
|
|
| Residual interest percentage sold in the CLO |
|
8.00%
|
|
| Remaining net assets of CLO entity |
|
$ 4,900,000
|
|
| Net gains (losses) resulting from change in fair value of the CLO entity's bank loans and other investments |
|
(3,200,000)
|
$ (2,400,000)
|
| Net gains (losses) resulting from change in the fair value of the CLO note obligations |
|
5,100,000
|
(1,200,000)
|
| Combined consolidated CLO entity net gains (losses) |
|
1,900,000
|
(3,600,000)
|
| The third-party note holders of the CLO entities net income (loss) recorded during the period included in net income attributable to non-controlling and other beneficial interests |
|
1,400,000
|
5,100,000
|
| The CLO's net income (loss) recorded in the Company's Consolidated Statement of Income |
|
2,000,000
|
(2,200,000)
|
| Net income (losses) attributable to Eaton Vance Corp. shareholders related to the consolidated CLO entity |
|
3,400,000
|
$ 2,900,000
|
| Loss on disposal of interest in the subordinated obligation of Eaton Vance CLO IX |
|
$ 300,000
|
|
| Eaton Vance CLO 2013-1 [Member] |
|
|
|
| Investments In Variable Interest Entities That Are Consolidated Details [Line Items] |
|
|
|
| Residual interest percentage sold in the CLO |
|
|
20.00%
|
| Date on which the CLO entity was deconsolidated |
|
|
May 01, 2014
|
| Net gains (losses) resulting from change in fair value of the CLO entity's bank loans and other investments |
|
|
$ (39,000)
|
| Net gains (losses) resulting from change in the fair value of the CLO note obligations |
|
|
2,400,000
|
| Combined consolidated CLO entity net gains (losses) |
|
|
2,400,000
|
| The third-party note holders of the CLO entities net income (loss) recorded during the period included in net income attributable to non-controlling and other beneficial interests |
|
|
(1,100,000)
|
| The CLO's net income (loss) recorded in the Company's Consolidated Statement of Income |
|
|
2,000,000
|
| Net income (losses) attributable to Eaton Vance Corp. shareholders related to the consolidated CLO entity |
|
|
$ 900,000
|
| Liabilities: |
|
|
|
| The Company's beneficial interest in note obligations issued by Eaton Vance CLO 2013-1 |
$ 1,400,000
|
|
|