Commitment Assets, Market Yields

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- Definition

Legal Settlements And Commitments

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- Definition

Loan Commitment Asset Fair Value

+ References

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.1)

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

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-Subparagraph (a)

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

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-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

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- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ 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 (e)

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Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

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- Definition

Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

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No definition available.

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Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19-26)

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Fair value of financial and nonfinancial obligations.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

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Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	0 Months Ended		12 Months Ended			0 Months Ended
	Dec. 20, 2012	Oct. 18, 2012	Dec. 31, 2014 Derivative	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Jul. 01, 2013	Dec. 31, 2013	Dec. 31, 2011	May 06, 2014
Fair Value of Financial Instruments [Line Items]
Cash and cash equivalents			$ 120,841,000	$ 70,790,000	$ 61,840,000	120,841,000		70,790,000	$ 2,681,000
Cash equivalents, money market funds			118,500,000us-gaap_MoneyMarketFundsAtCarryingValue	67,700,000us-gaap_MoneyMarketFundsAtCarryingValue		118,500,000us-gaap_MoneyMarketFundsAtCarryingValue		67,700,000us-gaap_MoneyMarketFundsAtCarryingValue
Company's longer-term historical volatility rate			55.00%	65.00%
Market discount rate	1.50%us-gaap_FairValueInputsDiscountRate	2.30%us-gaap_FairValueInputsDiscountRate
Carrying value of Milestone Rights			468,209,000us-gaap_Liabilities	289,359,000us-gaap_Liabilities		468,209,000us-gaap_Liabilities		289,359,000us-gaap_Liabilities
Transfers of assets between fair value measurement			0	0	0
Transfers of liabilities between fair value measurement			0	0	0
Number of embedded derivatives contained in facility financing obligation			4			4
Major Transaction Put Option
Fair Value of Financial Instruments [Line Items]
Estimated fair value of the embedded derivative , cumulative probability percentage			0.80%
Conversion option feature
Fair Value of Financial Instruments [Line Items]
Estimated fair value of the embedded derivative , cumulative probability percentage			0.00%
Acceleration upon a Legal Judgment Against the Company in Excess of $100,000
Fair Value of Financial Instruments [Line Items]
Estimated fair value of the embedded derivative , cumulative probability percentage			0.10%
Deerfield
Fair Value of Financial Instruments [Line Items]
Facility arrangement amount to be paid in excess of legal judgment			100,000
Fair Value, Inputs, Level 3 \| Milestone Rights Liability
Fair Value of Financial Instruments [Line Items]
Fair value of Milestone Rights			27,900,000			27,900,000
Carrying value of Milestone Rights			13,100,000			13,100,000
Fair Value, Inputs, Level 3 \| Income Approach Valuation Technique \| Milestone Rights Liability
Fair Value of Financial Instruments [Line Items]
Market discount rate			15.00%
Fair Value, Inputs, Level 3 \| Commitment Asset \| Income Approach Valuation Technique
Fair Value of Financial Instruments [Line Items]
Market discount rate			12.00%
Senior convertible notes due December 31, 2019
Fair Value of Financial Instruments [Line Items]
Additional commitment asset							2,900,000
Senior convertible notes due December 31, 2019 \| Deerfield
Fair Value of Financial Instruments [Line Items]
Additional commitment asset			0			0
Senior convertible notes due December 31, 2019 \| Deerfield \| Less portion of commitment asset
Fair Value of Financial Instruments [Line Items]
Additional commitment asset										1,200,000
Principal amount of notes purchased			20,000,000			20,000,000				20,000,000
Senior convertible notes due December 31, 2019 \| Deerfield \| Notes Issued in Four Equal Tranches
Fair Value of Financial Instruments [Line Items]
Principal amount of notes purchased			160,000,000			160,000,000
Senior convertible notes due December 31, 2019 \| Fair Value, Inputs, Level 3 \| Less portion of commitment asset
Fair Value of Financial Instruments [Line Items]
Additional commitment asset			$ 2,900,000			2,900,000
Percentage of market yield			11.80%			11.80%
Senior convertible notes due December 31, 2019 \| Fair Value, Inputs, Level 3 \| Income Approach Valuation Technique
Fair Value of Financial Instruments [Line Items]
Market discount rate			12.40%
Senior convertible notes due December 31, 2019 \| Fair Value, Inputs, Level 3 \| Income Approach Valuation Technique \| Less portion of commitment asset
Fair Value of Financial Instruments [Line Items]
Market discount rate						11.80%	11.90%
Senior convertible notes due December 31, 2019 \| Fair Value, Inputs, Level 3 \| Income Approach Valuation Technique \| Tranche One
Fair Value of Financial Instruments [Line Items]
Market discount rate						12.30%		12.70%
Senior convertible notes due December 31, 2019 \| Fair Value, Inputs, Level 3 \| Income Approach Valuation Technique \| Fourth tranche
Fair Value of Financial Instruments [Line Items]
Market discount rate						12.20%