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SHAREHOLDERS' EQUITY (Details 3) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | 1 Months Ended | 1 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
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Feb. 28, 2011
|
Dec. 31, 2010
Common stock
|
Dec. 31, 2011
Common stock
|
Jul. 26, 2011
Common stock
|
Mar. 31, 2011
Common stock
|
Dec. 31, 2010
Class B convertible common stock
|
|
| Shareholders' equity | ||||||||||
| Common stock repurchased (in shares) | 13.6 | 23.1 | ||||||||
| Aggregate consideration for common stock repurchased | $ 518,637 | $ 530,885 | $ 554,203 | |||||||
| Cash payment component of tax-free exchange for substantially all of Liberty's stake in IAC | $ 217,900 | $ 217,921 | ||||||||
| Shares exchanged | 4.3 | 8.5 | ||||||||
| Shares received from Liberty in fulfillment of post-closing working capital adjustments | 0.1 | 0.1 | ||||||||
| Additional shares authorized for repurchase | 15 | |||||||||
| Shares remaining in share repurchase authorization | 8.6 | |||||||||