Derivative Financial Instruments - Remaining Contract Maturity of Fair Value of OTC Derivative Assets and Liabilities (Detail)
$ in Thousands |
May 31, 2016
USD ($)
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
$ 198,007
|
| OTC derivative assets having maturity period of 1 to 5 years |
248,791
|
| OTC derivative assets having maturity period of greater than 5 years |
60,695
|
| OTC derivative assets cross-maturity netting |
(108,563)
|
| Total OTC derivative assets, net of cross-maturity netting |
398,930
|
| Cross product counterparty netting |
(1,148)
|
| Total OTC derivative assets included in Financial instruments owned |
397,782
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
158,123
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
134,394
|
| OTC derivative liabilities having maturity period of greater than 5 years |
164,487
|
| OTC derivative liabilities cross-maturity netting |
(108,563)
|
| Total OTC derivative liabilities, net of cross-maturity netting |
348,441
|
| Cross product counterparty netting |
(1,148)
|
| Total OTC derivative liabilities included in Financial instruments sold, not yet purchased |
347,293
|
| Commodity Swaps Options And Forwards [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
0
|
| OTC derivative assets having maturity period of 1 to 5 years |
7,258
|
| OTC derivative assets having maturity period of greater than 5 years |
0
|
| OTC derivative assets cross-maturity netting |
0
|
| Total OTC derivative assets, net of cross-maturity netting |
7,258
|
| Equity Swaps And Options [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
33,631
|
| OTC derivative assets having maturity period of 1 to 5 years |
2,646
|
| OTC derivative assets having maturity period of greater than 5 years |
0
|
| OTC derivative assets cross-maturity netting |
0
|
| Total OTC derivative assets, net of cross-maturity netting |
36,277
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
3,957
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
18,813
|
| OTC derivative liabilities having maturity period of greater than 5 years |
0
|
| OTC derivative liabilities cross-maturity netting |
0
|
| Total OTC derivative liabilities, net of cross-maturity netting |
22,770
|
| Credit Default Swap [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
0
|
| OTC derivative assets having maturity period of 1 to 5 years |
6,362
|
| OTC derivative assets having maturity period of greater than 5 years |
1,009
|
| OTC derivative assets cross-maturity netting |
(1,194)
|
| Total OTC derivative assets, net of cross-maturity netting |
6,177
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
0
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
2,851
|
| OTC derivative liabilities having maturity period of greater than 5 years |
11,461
|
| OTC derivative liabilities cross-maturity netting |
(1,194)
|
| Total OTC derivative liabilities, net of cross-maturity netting |
13,118
|
| Total Return Swap [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
22,128
|
| OTC derivative assets having maturity period of 1 to 5 years |
5,101
|
| OTC derivative assets having maturity period of greater than 5 years |
0
|
| OTC derivative assets cross-maturity netting |
(635)
|
| Total OTC derivative assets, net of cross-maturity netting |
26,594
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
8,721
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
2,738
|
| OTC derivative liabilities having maturity period of greater than 5 years |
0
|
| OTC derivative liabilities cross-maturity netting |
(635)
|
| Total OTC derivative liabilities, net of cross-maturity netting |
10,824
|
| Foreign Currency Forwards Swaps And Options [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
86,663
|
| OTC derivative assets having maturity period of 1 to 5 years |
12,391
|
| OTC derivative assets having maturity period of greater than 5 years |
0
|
| OTC derivative assets cross-maturity netting |
(5,083)
|
| Total OTC derivative assets, net of cross-maturity netting |
93,971
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
109,643
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
8,191
|
| OTC derivative liabilities having maturity period of greater than 5 years |
0
|
| OTC derivative liabilities cross-maturity netting |
(5,083)
|
| Total OTC derivative liabilities, net of cross-maturity netting |
112,751
|
| Fixed Income Forwards [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
2,053
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
1,207
|
| OTC derivative liabilities having maturity period of greater than 5 years |
0
|
| OTC derivative liabilities cross-maturity netting |
0
|
| Total OTC derivative liabilities, net of cross-maturity netting |
3,260
|
| Interest Rate Swaps, Options and Forwards [Member] |
|
| Derivative [Line Items] |
|
| OTC derivative assets having maturity period of 0 to 12 months |
55,585
|
| OTC derivative assets having maturity period of 1 to 5 years |
215,033
|
| OTC derivative assets having maturity period of greater than 5 years |
59,686
|
| OTC derivative assets cross-maturity netting |
(101,651)
|
| Total OTC derivative assets, net of cross-maturity netting |
228,653
|
| OTC derivative liabilities having maturity period of 0 to 12 months |
33,749
|
| OTC derivative liabilities having maturity period of 1 to 5 years |
100,594
|
| OTC derivative liabilities having maturity period of greater than 5 years |
153,026
|
| OTC derivative liabilities cross-maturity netting |
(101,651)
|
| Total OTC derivative liabilities, net of cross-maturity netting |
$ 185,718
|