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Acquisition of Pharmasset, Inc. Table of Pro Forma of Pharmasset (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2012
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Mar. 31, 2011
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| Business Combinations [Abstract] | ||
| Business Acquisition, Pro Forma Revenue | $ 2,282,449 | $ 1,926,094 |
| Business Acquisition, Pro Forma Net Income (Loss) | $ 574,375 | $ 397,165 |