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Grifols Collaboration Agreement - Additional Information (Detail) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2009 | Sep. 24, 2016 | Sep. 26, 2015 | Sep. 27, 2014
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |  |  |  |
Collaboration agreements revenue |  | $ 235.4 | $ 253.1 | $ 223.3
Blood screening [Member] | Grifols [Member] | Collaboration Agreement [Member] |  |  |  |
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |  |  |  |
Manufacturing costs entitled to recover | 50.00% |  |  |
Share of Revenue from Any Assay | 50.00% |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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