|
Segment and Geographic Information Segment Table (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
Dec. 31, 2012
|
|
| Net revenues | $ 216,074 | $ 303,922 | |
| Income before income taxes | 82,223 | 149,677 | |
| Segment Assets | 35,144,104 | 33,199,557 | |
|
Electronic brokerage
|
|||
| Net revenues | 195,185 | 159,326 | |
| Income before income taxes | 110,883 | 83,390 | |
| Segment Assets | 27,598,667 | 25,741,495 | |
|
Market making
|
|||
| Net revenues | 23,555 | 142,411 | |
| Income before income taxes | (29,028) | 65,968 | |
| Segment Assets | 13,461,161 | 12,730,811 | |
|
Corporate and eliminations
|
|||
| Net revenues | (2,666) | 2,185 | |
| Income before income taxes | 368 | 319 | |
| Segment Assets | $ (5,915,724) | $ (5,272,749) | |