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Collaborative and Other Relationships (Details 1) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Acorda |  |  |
Summary of activity related to collaboration with Acorda |  |  |
Total upfront and milestone payments made to Acorda | $ 0 | $ 0 | $ 25.0
Total cost of sales related to royalties and commercial supply reflected within our consolidated statements of income | $ 24.3 | $ 20.2 | $ 6.5
GAZYVA [Member] |  |  |
Collaborative arrangements and non-collaborative arrangement transactions |  |  |
Percentage Of Co Promotion Operating Profits Greater Than First Fifty Million Option Two Sub Option Two | 37.50% |  |

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