Noncontrolling Interests (Detail) - USD ($) $ in Thousands |
May 31, 2016 |
Nov. 30, 2015 |
|---|---|---|
| Noncontrolling Interest [Line Items] | ||
| Noncontrolling interests | $ 5,201 | $ 27,468 |
| Global Equity Event Opportunity Fund LLC [Member] | ||
| Noncontrolling Interest [Line Items] | ||
| Noncontrolling interests | 4,514 | 26,292 |
| Other [Member] | ||
| Noncontrolling Interest [Line Items] | ||
| Noncontrolling interests | $ 687 | 1,176 |
| Leucadia [Member] | ||
| Noncontrolling Interest [Line Items] | ||
| Noncontrolling interests | $ 26,300 |