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Stock-Based Compensation (Outstanding Awards) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2013
|
Jun. 30, 2013
Interactive Group [Member]
Common Class A [Member]
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Dec. 31, 2012
Interactive Group [Member]
Common Class A [Member]
|
Jun. 30, 2013
Interactive Group [Member]
Series A [Member]
|
Jun. 30, 2013
Interactive Group [Member]
ERROR in label resolution.
|
Jun. 30, 2013
Interactive Group [Member]
Common Class B [Member]
|
Dec. 31, 2012
Interactive Group [Member]
Common Class B [Member]
|
Jun. 30, 2013
Ventures Group [Member]
Common Class A [Member]
|
Dec. 31, 2012
Ventures Group [Member]
Common Class A [Member]
|
Jun. 30, 2013
Ventures Group [Member]
Series A [Member]
|
Jun. 30, 2013
Ventures Group [Member]
ERROR in label resolution.
|
Jun. 30, 2013
Ventures Group [Member]
Common Class B [Member]
|
Dec. 31, 2012
Ventures Group [Member]
Common Class B [Member]
|
Mar. 31, 2012
Expedia [Member]
|
|
| Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share | $ 34 | |||||||||||||
| Outstanding options | 35,212,000 | 33,839,000 | 35,212,000 | 432,000 | 432,000 | 432,000 | 1,070,000 | 1,155,000 | 1,070,000 | 22,000 | 22,000 | 22,000 | ||
| Outstanding WAEP | $ 17.88 | $ 16.92 | $ 17.88 | $ 17.92 | $ 17.92 | $ 17.92 | $ 56.87 | $ 56.26 | $ 56.87 | $ 46.69 | $ 46.69 | $ 46.69 | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term | 5 years 3 months 18 days | 1 year 10 months 24 days | 5 years 6 months 0 days | 1 year 10 months 24 days | ||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term | 4 years 1 month 15 days | 1 year 10 months 24 days | 4 years 4 months 24 days | 1 year 10 months 24 days | ||||||||||
| Aggregate intrinsic value | $ 181,134 | $ 1,819 | $ 30,130 | $ 827 | ||||||||||
| Exercisable options | 14,263,000 | 14,263,000 | 432,000 | 432,000 | 450,000 | 450,000 | 22,000 | 22,000 | ||||||
| Exercisable WAEP | $ 16.18 | $ 16.18 | $ 17.92 | $ 17.92 | $ 54.69 | $ 54.69 | $ 46.69 | $ 46.69 | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ 97,735 | $ 1,819 | $ 13,687 | $ 827 | ||||||||||
| Options granted | 4,200,000 | 4,188,000 | 0 | 0 | 0 | |||||||||
| WAEP of grants in the period | $ 21.08 | $ 0.00 | $ 0.00 | $ 0.00 | ||||||||||
| Options exercised | (2,365,000) | 0 | (84,000) | 0 | ||||||||||
| WAEP exercised | $ 10.44 | $ 0.00 | $ 48.58 | $ 0.00 | ||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | 450,000 | 0 | 1,000 | 0 | ||||||||||
| WAEP forfeited/cancelled during period | $ 14.58 | $ 0.00 | $ 43.48 | $ 0.00 | ||||||||||