Fair Value Disclosures - Additional Information (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 |
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Investments at fair value |
$ 30,300
|
|
$ 30,300
|
|
$ 36,700
|
| Transfers of assets from Level 2 to Level 3 |
107,100
|
$ 98,400
|
155,900
|
$ 155,000
|
|
| Transfers of assets from Level 3 to Level 2 |
62,700
|
96,400
|
92,900
|
87,000
|
|
| Transfers of liabilities from Level 3 to Level 2 |
|
|
|
3,000
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(21,400)
|
2,400
|
(51,900)
|
(17,300)
|
|
| Net gains/(losses) on Level 3 liabilities (realized and unrealized) |
300
|
5,000
|
(9,500)
|
(1,900)
|
|
| Unadjusted net asset value of the funds |
97,000
|
|
97,000
|
|
156,200
|
| Unadjusted net liability value of the funds |
500
|
|
500
|
|
600
|
| Aggregate fair value of loans and other receivables |
23,300
|
|
23,300
|
|
11,300
|
| Loan and other receivables on nonaccrual status |
51,800
|
|
51,800
|
|
$ 307,500
|
| Long-term Debt [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Other changes in fair value |
3,489
|
0
|
10,305
|
0
|
|
| Long-term Debt [Member] | Principal Transactions Revenue [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Other changes in fair value |
3,900
|
|
10,700
|
|
|
| Long-term Debt [Member] | Interest Expense [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Other changes in fair value |
400
|
|
400
|
|
|
| Collateralized debt obligations [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
|
48,000
|
30,600
|
27,300
|
|
| Transfers of assets from Level 3 to Level 2 |
|
54,400
|
22,300
|
52,300
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
1,797
|
(5,120)
|
(20,455)
|
(17,229)
|
|
| Residential mortgage-backed securities [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
19,300
|
30,000
|
21,700
|
20,300
|
|
| Transfers of assets from Level 3 to Level 2 |
19,500
|
23,000
|
16,700
|
15,100
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(4,915)
|
(1,820)
|
(8,337)
|
(3,735)
|
|
| Investments at fair value [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
|
|
26,100
|
69,200
|
|
| Transfers of assets from Level 3 to Level 2 |
|
|
16,100
|
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(1,574)
|
3,380
|
(6,090)
|
4,615
|
|
| Other asset-backed securities [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
30,700
|
2,100
|
28,000
|
2,100
|
|
| Transfers of assets from Level 3 to Level 2 |
16,000
|
5,400
|
|
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(7,284)
|
(19)
|
(202)
|
(258)
|
|
| Corporate equity securities [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
22,000
|
1,400
|
|
1,600
|
|
| Transfers of assets from Level 3 to Level 2 |
|
7,000
|
|
10,300
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(927)
|
8,030
|
1,571
|
7,066
|
|
| Commercial mortgage-backed securities [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
|
7,700
|
|
10,200
|
|
| Transfers of assets from Level 3 to Level 2 |
|
5,500
|
|
3,500
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(1,140)
|
(789)
|
(2,589)
|
(1,124)
|
|
| Loans and other receivables [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
15,900
|
1,000
|
20,200
|
13,900
|
|
| Transfers of assets from Level 3 to Level 2 |
|
|
16,800
|
5,300
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
(7,792)
|
(748)
|
(13,376)
|
(5,795)
|
|
| Corporate debt securities [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Transfers of assets from Level 2 to Level 3 |
|
8,200
|
|
10,400
|
|
| Net gains/(losses) on Level 3 assets (realized and unrealized) |
$ 474
|
$ (532)
|
$ (2,378)
|
$ (796)
|
|
| 3.875% Convertible Senior Debentures due 2029 [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Debt instrument interest rate |
3.875%
|
|
3.875%
|
|
|
| 3.875% Convertible Senior Debentures due 2029 [Member] | Leucadia [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Debt instrument interest rate |
3.875%
|
|
3.875%
|
|
|
| Long-term debt embedded conversion option [Member] | Leucadia [Member] |
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
|
| Volatility curve used in valuing embedded option |
|
|
252 days
|
|
|