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Acquisition of Pharmasset, Inc. Other Costs as Classifed by Expense Category (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2012
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Dec. 31, 2011
|
Mar. 31, 2011
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|
| Other Costs Classified by Expense Category [Line Items] | |||
| Other Costs Associated with Acquisition | $ 24,716 | $ 52,278 | $ 16,400 |
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Research and Development Expense [Member]
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| Other Costs Classified by Expense Category [Line Items] | |||
| Other Costs Associated with Acquisition | 5,557 | 0 | |
|
Selling General And Administrative Expenses [Member]
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| Other Costs Classified by Expense Category [Line Items] | |||
| Other Costs Associated with Acquisition | 11,826 | ||
|
Interest Expense [Member]
|
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| Other Costs Classified by Expense Category [Line Items] | |||
| Other Costs Associated with Acquisition | $ 7,333 | ||