|
Condensed Consolidated Statements of Changes in Equity (Unaudited) (USD $)
In Thousands, except Share data |
Total
|
Common Stock
|
Additional Paid-in Capital
|
Treasury Stock
|
Retained Earnings (Accumulated Deficit)
|
Accumulated Other Comprehensive Income
|
Total Stockholders' Equity (Deficit)
|
Other Noncontrolling Interests
|
Redeemable Noncontrolling Interests
|
|---|---|---|---|---|---|---|---|---|---|
| Balance at Dec. 31, 2011 | $ (457,664) | $ 460 | $ 0 | $ (13,310) | $ (465,138) | $ 18,487 | $ (459,501) | $ 1,837 | $ 5,269,619 |
| Adjustment of redeemable noncontrolling interests to redemption value | (584,659) | (2,030) | (582,629) | (584,659) | 726,601 | ||||
| Common stock distributed pursuant to stock plans | 73 | 41 | 32 | 73 | |||||
| Common Stock distributed pursuant to stock plans (in shares) | 2,662 | ||||||||
| Compensation for stock grants vesting in the future | 2,027 | 2,027 | 2,027 | ||||||
| Dividends paid to shareholders | (4,557) | (4,557) | (4,557) | ||||||
| Dividends paid by IBG LLC to other noncontrolling interests | (4) | (4) | |||||||
| Adjustments for changes in proportionate ownership in IBG LLC | (38) | (38) | (38) | ||||||
| Comprehensive Income, net of tax | 13,797 | 11,084 | 2,626 | 13,710 | 87 | ||||
| Balance at Mar. 31, 2012 | (1,031,025) | 460 | 0 | (13,278) | (1,041,240) | 21,113 | (1,032,945) | 1,920 | 5,996,220 |
| Common stock, shares issued at Mar. 31, 2012 | 46,063,918 | ||||||||
| Balance at Dec. 31, 2012 | 4,813,147 | 478 | 493,912 | (7,718) | 80,072 | 29,754 | 598,498 | 4,214,649 | |
| Common stock, shares issued at Dec. 31, 2012 | 47,797,844 | ||||||||
| Common stock distributed pursuant to stock plans | 52 | 52 | 52 | ||||||
| Common Stock distributed pursuant to stock plans (in shares) | 3,605 | ||||||||
| Compensation for stock grants vesting in the future | 8,698 | 1,036 | 1,036 | 7,662 | |||||
| Dividends paid to shareholders | (4,750) | (4,750) | (4,750) | ||||||
| Dividends paid by IBG LLC to other noncontrolling interests | (35,137) | (35,137) | |||||||
| Adjustments for changes in proportionate ownership in IBG LLC | 0 | (125) | (125) | 125 | |||||
| Comprehensive Income, net of tax | 43,925 | 6,557 | (3,742) | 2,815 | 41,110 | ||||
| Balance at Mar. 31, 2013 | $ 4,825,935 | $ 478 | $ 494,823 | $ (7,666) | $ 83,879 | $ 26,012 | $ 597,526 | $ 4,228,409 | |
| Common stock, shares issued at Mar. 31, 2013 | 47,801,449 |