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Commitments and Contingencies (Tables) | 3 Months Ended
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Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract] |
Schedule of milestone payments based on the attainment of certain sales levels | We are required to make additional contingent payments to former shareholders of Fumapharm AG based on the attainment of certain cumulative sales levels of Fumapharm Products, with the amount of each payment based on the level of total net sales of Fumapharm Products in the prior twelve month period, as defined in the acquisition agreement:
|  | Cumulative Sales Level
|  | $1.0B |  | $2.0B |  | $3.0B |  | Each additional $1.0B up to $20.0B
Prior 12 Month Sales |  | Payment Amounts (In Millions)
< $500 million |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
$500 million - $1.0 billion |  | 25.0 |  |  | 50.0 |  |  | 50.0 |  |  | 50.0 |
$1.0 billion - $1.5 billion |  | 50.0 |  |  | 100.0 |  |  | 100.0 |  |  | 100.0 |
$1.5 billion - $2.0 billion |  | — |  |  | 150.0 |  |  | 150.0 |  |  | 150.0 |
$2.0 billion - $2.5 billion |  | — |  |  | 200.0 |  |  | 200.0 |  |  | 200.0 |
$2.5 billion - $3.0 billion |  | — |  |  | — |  |  | 250.0 |  |  | 250.0 |
> $3.0 billion |  | — |  |  | — |  |  | — |  |  | 300.0 |

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