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Fair Value of Financial Instruments (Detail) - USD ($) $ in Millions | Jun. 30, 2016 | Dec. 31, 2015
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Financial liabilities: |  |
Financial liabilities fair value | $ 197.4 | $ 150.6
Sanofi-Aventis Deutschland GmbH |  |
Financial liabilities: |  |
Financial liabilities fair value | 62.0 | 36.8
Warrant Liability |  |
Financial liabilities: |  |
Financial liabilities fair value | 18.1 |
Milestone Rights Liability |  |
Financial liabilities: |  |
Financial liabilities fair value | 15.6 | 14.4
Senior Convertible Notes | Convertible Debt Securities |  |
Financial liabilities: |  |
Financial liabilities fair value | 21.8 | 21.3
Facility financing obligation |  |
Financial liabilities: |  |
Financial liabilities fair value | 79.9 | 78.4
Fair Value, Inputs, Level 3 |  |
Financial liabilities: |  |
Financial liabilities fair value | 197.4 | 150.6
Fair Value, Inputs, Level 3 | Sanofi-Aventis Deutschland GmbH |  |
Financial liabilities: |  |
Financial liabilities fair value | 62.0 | 36.5
Fair Value, Inputs, Level 3 | Warrant Liability |  |
Financial liabilities: |  |
Financial liabilities fair value | 18.1 |
Fair Value, Inputs, Level 3 | Milestone Rights Liability |  |
Financial liabilities: |  |
Financial liabilities fair value | 15.6 | 14.4
Fair Value, Inputs, Level 3 | Senior Convertible Notes | Convertible Debt Securities |  |
Financial liabilities: |  |
Financial liabilities fair value | 21.8 | 21.3
Fair Value, Inputs, Level 3 | Facility financing obligation |  |
Financial liabilities: |  |
Financial liabilities fair value | $ 79.9 | $ 78.4

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- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. + References No definition available. + Details
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