Regulatory Requirements - Net Capital and Excess Net Capital (Details) $ in Thousands |
May 31, 2026
USD ($)
|
|---|---|
| Jefferies LLC | |
| Net Capital Requirements [Line Items] | |
| Net Capital | $ 1,968,926 |
| Excess Net Capital | 1,748,341 |
| JFSI - SEC | |
| Net Capital Requirements [Line Items] | |
| Net Capital | 245,822 |
| Excess Net Capital | 198,013 |
| JFSI - CFTC | |
| Net Capital Requirements [Line Items] | |
| Net Capital | 245,822 |
| Excess Net Capital | 210,333 |
| JIL | |
| Net Capital Requirements [Line Items] | |
| Net Capital | 2,079,901 |
| Excess Net Capital | 1,032,004 |
| Jefferies GmbH | |
| Net Capital Requirements [Line Items] | |
| Net Capital | 397,293 |
| Excess Net Capital | $ 278,262 |