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Development and License Agreements - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Licenses Agreements [Line Items] |  |  |  |  |
Royalty payments on products | $ 0.5 | $ 0.6 | $ 1.3 | $ 1.3 |
Prior written notice for termination of agreement |  |  | 24 months |  |
Revenue from sale of components | 0.5 | 1.1 | $ 0.9 | 3.8 |
Payments made relating to the manufacturing of the products | 4.7 | $ 4.9 | 9.4 | $ 9.5 |
Amounts due from Fresenius | 0.8 |  | $ 0.8 |  | $ 1.3
Fresenius |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |
Prior written notice for termination of agreement |  |  | 30 months |  |
Royalty |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |
Royalties owed | 0.7 |  | $ 0.7 |  | 0.7
Royalty | Platelet system |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |
Royalty rate applied towards sale of products |  |  | 10.00% |  |
Royalty | Plasma system |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |
Royalty rate applied towards sale of products |  |  | 3.00% |  |
Manufacturing Costs |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |
Royalties owed | $ 2.5 |  | $ 2.5 |  | $ 5.1

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