Income Taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
May 31, 2022 |
May 31, 2021 |
May 31, 2022 |
May 31, 2021 |
Nov. 30, 2021 |
|
| Income Taxes [Line Items] | |||||
| Unrecognized tax benefits | $ 455,600 | $ 455,600 | $ 436,900 | ||
| Interest included in unrecognized tax benefits | 105,800 | 105,800 | 97,900 | ||
| Net deferred tax asset | 401,300 | 401,300 | 327,500 | ||
| Income tax provision | 49,683 | $ 120,820 | $ 114,040 | $ 339,056 | |
| Effective income tax rate | 20.40% | 26.60% | |||
| Jefferies Group | |||||
| Income Taxes [Line Items] | |||||
| Unrecognized tax benefits | $ 290,700 | $ 290,700 | $ 273,200 | ||