Collateralized Transactions - Contractual Maturity (Details) - USD ($)
$ in Thousands |
May 31, 2016 |
Nov. 30, 2015 |
| Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |
|
|
| Securities Lending Arrangements |
$ 2,949,266
|
$ 2,979,300
|
| Repurchase Agreements |
16,268,397
|
20,195,982
|
| Total |
19,217,663
|
23,175,282
|
| Overnight and Continuous [Member] |
|
|
| Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |
|
|
| Securities Lending Arrangements |
1,695,657
|
1,522,475
|
| Repurchase Agreements |
7,603,982
|
7,850,791
|
| Total |
9,299,639
|
9,373,266
|
| Up to 30 Days [Member] |
|
|
| Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |
|
|
| Securities Lending Arrangements |
71,233
|
0
|
| Repurchase Agreements |
4,479,366
|
5,218,059
|
| Total |
4,550,599
|
5,218,059
|
| 30-90 Days [Member] |
|
|
| Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |
|
|
| Securities Lending Arrangements |
1,182,376
|
973,201
|
| Repurchase Agreements |
2,011,057
|
5,291,729
|
| Total |
3,193,433
|
6,264,930
|
| Greater than 90 Days [Member] |
|
|
| Transfer Of Certain Financial Assets Accounted For As Secured Borrowings [Line Items] |
|
|
| Securities Lending Arrangements |
0
|
483,624
|
| Repurchase Agreements |
2,173,992
|
1,835,403
|
| Total |
$ 2,173,992
|
$ 2,319,027
|