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Stock-Based Compensation (Outstanding Awards) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
9 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2013
Interactive Group [Member]
Common Class A [Member]
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Dec. 31, 2012
Interactive Group [Member]
Common Class A [Member]
|
Sep. 30, 2013
Interactive Group [Member]
Series A [Member]
|
Sep. 30, 2013
Interactive Group [Member]
ERROR in label resolution.
|
Sep. 30, 2013
Interactive Group [Member]
Common Class B [Member]
|
Dec. 31, 2012
Interactive Group [Member]
Common Class B [Member]
|
Sep. 30, 2013
Ventures Group [Member]
Common Class A [Member]
|
Dec. 31, 2012
Ventures Group [Member]
Common Class A [Member]
|
Sep. 30, 2013
Ventures Group [Member]
Series A [Member]
|
Sep. 30, 2013
Ventures Group [Member]
ERROR in label resolution.
|
Sep. 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 | 33,647,000 | 33,839,000 | 33,647,000 | 432,000 | 432,000 | 432,000 | 1,056,000 | 1,155,000 | 1,056,000 | 22,000 | 22,000 | 22,000 | ||
| Outstanding WAEP | $ 17.93 | $ 16.92 | $ 17.93 | $ 17.92 | $ 17.92 | $ 17.92 | $ 56.96 | $ 56.26 | $ 56.96 | $ 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 1 month 6 days | 1 year 8 months 12 days | 5 years 0 months 0 days | 1 year 8 months 12 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 8 months 12 days | 4 years 2 months 12 days | 1 year 8 months 12 days | ||||||||||
| Aggregate intrinsic value | $ 186,764 | $ 2,523 | $ 32,988 | $ 931 | ||||||||||
| Exercisable options | 14,055,000 | 14,055,000 | 432,000 | 432,000 | 444,000 | 444,000 | 22,000 | 22,000 | ||||||
| Exercisable WAEP | $ 16.17 | $ 16.17 | $ 17.92 | $ 17.92 | $ 54.82 | $ 54.82 | $ 46.69 | $ 46.69 | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ 102,874 | $ 2,523 | $ 14,835 | $ 931 | ||||||||||
| 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 | (3,836,000) | 0 | (98,000) | 0 | ||||||||||
| WAEP exercised | $ 12.84 | $ 0.00 | $ 48.81 | $ 0.00 | ||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | 544,000 | 0 | 1,000 | 0 | ||||||||||
| WAEP forfeited/cancelled during period | $ 15.00 | $ 0.00 | $ 43.48 | $ 0.00 | ||||||||||