Collaborative Arrangements (Details) (USD $) | 3 Months Ended | 1 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2011 | Sep. 30, 2011 | Dec. 31, 2010 | Mar. 31, 2011
Yale [Member] | |
| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] | ||||
| Total assets held by the joint venture with BMS | $ 1,330,000,000 | $ 1,450,000,000 | ||
| Total liabilities held by the joint venture with BMS | 1,020,000,000 | 759,500,000 | ||
| Research and development support during initial four year period | 40,000,000 | |||
| Term of initial research effort, in years | 4 | |||
| Optional renewal term, maximum, in years | 10 | |||
| Maximum research and development support provided over ten years | 100,000,000 | |||
| Collaborative arrangement upfront payment to MicroDose | $ 8,000,000 |