Variable Interest Entities Investments in VIEs That Are Consolidated (Details) - Eaton Vance CLO 2015-1 [Member] - USD ($)
$ in Millions |
3 Months Ended |
6 Months Ended |
12 Months Ended |
Apr. 30, 2016 |
Apr. 30, 2016 |
Oct. 31, 2016 |
| Investments In Variable Interest Entities That Are Consolidated Details [Line Items] |
|
|
|
| Residual interest percentage sold in the CLO |
|
|
16.10%
|
| Gain on disposal of interest in the subordinated obligation of CLO entity |
|
|
$ 0.1
|
| Date on which the CLO entity was deconsolidated |
|
|
Sep. 21, 2016
|
| Net gains (losses) resulting from change in fair value of the CLO entity's bank loans and other investments |
$ 2.5
|
$ (4.5)
|
|
| Net gains (losses) resulting from change in the fair value of the CLO note obligations |
6.6
|
13.1
|
|
| Combined consolidated CLO entity net gains (losses) |
9.1
|
8.6
|
|
| 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 |
(10.8)
|
(12.7)
|
|
| The CLO's net income (loss) recorded in the Company's Consolidated Statement of Income |
11.0
|
12.4
|
|
| Net income (losses) attributable to Eaton Vance Corp. shareholders related to the consolidated CLO entity |
$ 0.2
|
$ (0.3)
|
|