Investments - Jefferies Finance - Narrative (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
|
May 31, 2016 |
May 31, 2015 |
May 31, 2016 |
May 31, 2015 |
Nov. 30, 2015 |
| Guarantee Obligations [Line Items] |
|
|
|
|
|
| Equity commitments to JFIN |
$ 600,000
|
|
$ 600,000
|
|
|
| Total committed equity capitalization of JIFN |
1,200,000
|
|
1,200,000
|
|
|
| Funded portion of equity commitment to subsidiary |
497,400
|
|
497,400
|
|
|
| Unfunded portion of equity commitment to subsidiary |
102,600
|
|
$ 102,600
|
|
|
| Extension period |
|
|
1 year
|
|
|
| Termination notice period |
|
|
60 days
|
|
|
| Funded portion of loan commitment |
0
|
|
$ 0
|
|
$ 19,300
|
| Loan commitment |
250,000
|
|
250,000
|
|
250,000
|
| Commissions for conducting brokerage services |
146,157
|
$ 173,508
|
301,981
|
$ 340,430
|
|
| Investment banking revenue (loss) |
253,046
|
404,262
|
483,976
|
676,257
|
|
| Jefferies Finance, LLC [Member] |
|
|
|
|
|
| Guarantee Obligations [Line Items] |
|
|
|
|
|
| Net income (loss) in earnings |
(33,200)
|
40,600
|
(77,800)
|
62,000
|
|
| Net underwriting fees paid by JFIN related to originations of loans by JFIN |
3,700
|
39,900
|
23,100
|
55,500
|
|
| Fees paid to JFIN related to origination of loans by JFIN |
1,600
|
900
|
1,600
|
1,600
|
|
| Commissions for conducting brokerage services |
|
3,100
|
|
3,100
|
|
| Investment banking revenue (loss) |
(36)
|
|
1,300
|
|
|
| Payments for underwriting fees |
|
1,300
|
|
|
|
| Administrative services provided |
7,500
|
$ 7,100
|
28,600
|
$ 34,900
|
|
| Receivables under service agreement |
2,400
|
|
2,400
|
|
$ 7,800
|
| Committed Advances [Member] |
|
|
|
|
|
| Guarantee Obligations [Line Items] |
|
|
|
|
|
| Committed line of credit facility amount |
$ 500,000
|
|
$ 500,000
|
|
|