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Financial Instruments (Details) (Recurring, USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | $ 16,086 | $ 13,960
Liabilities, fair value | 25,904 | 23,647
Current portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 1,712 | 356
Current portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 4,329 | 4,327
Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  | 10,543
Long-term portion of contingent liabilities - Metabasis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 4,196 |
Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 7,599 |
Liability for restricted investments owed to former licensees |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 651 | 214
Long-term portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 7,417 | 8,207
Current portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 4,329 | 4,327
Short-term investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 4,340 |
Available-for-sale securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  | 1,426
Long-term portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 7,417 | 8,207
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 4,340 |
Liabilities, fair value | 4,847 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Current portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Current portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term portion of contingent liabilities - Metabasis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 4,196 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Liability for restricted investments owed to former licensees |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 651 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Current portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 4,340 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Available-for-sale securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Significant Other Observable Inputs (Level 2) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 0 |
Liabilities, fair value |  | 0
Significant Other Observable Inputs (Level 2) | Current portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Significant Other Observable Inputs (Level 2) | Current portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Significant Other Observable Inputs (Level 2) | Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Significant Other Observable Inputs (Level 2) | Long-term portion of contingent liabilities - Metabasis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Significant Other Observable Inputs (Level 2) | Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 0 |
Significant Other Observable Inputs (Level 2) | Liability for restricted investments owed to former licensees |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Significant Other Observable Inputs (Level 2) | Long-term portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 0 |
Significant Other Observable Inputs (Level 2) | Current portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Significant Other Observable Inputs (Level 2) | Short-term investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Significant Other Observable Inputs (Level 2) | Available-for-sale securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Significant Other Observable Inputs (Level 2) | Long-term portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Significant Unobservable Inputs (Level 3) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 11,746 | 13,960
Liabilities, fair value | 21,057 | 23,647
Significant Unobservable Inputs (Level 3) | Current portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 1,712 | 356
Significant Unobservable Inputs (Level 3) | Current portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 4,329 | 4,327
Significant Unobservable Inputs (Level 3) | Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  | 10,543
Significant Unobservable Inputs (Level 3) | Long-term portion of contingent liabilities - Metabasis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  |
Significant Unobservable Inputs (Level 3) | Long-term portion of contingent liabilities - CyDex |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 7,599 |
Significant Unobservable Inputs (Level 3) | Liability for restricted investments owed to former licensees |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value |  | 214
Significant Unobservable Inputs (Level 3) | Long-term portion of co-promote termination liability |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Liabilities, fair value | 7,417 | 8,207
Significant Unobservable Inputs (Level 3) | Current portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | 4,329 | 4,327
Significant Unobservable Inputs (Level 3) | Short-term investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  |
Significant Unobservable Inputs (Level 3) | Available-for-sale securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value |  | 1,426
Significant Unobservable Inputs (Level 3) | Long-term portion of co-promote termination payments receivable |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value | $ 7,417 | $ 8,207

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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