New Accounting Pronouncements (Policies)	9 Months Ended
Sep. 30, 2012
New Accounting Pronouncements [Abstract]
Disclosures about Offsetting Assets and Liabilities	In December 2011, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities” (“ASU 2011-11”). ASU 2011-11 enhances current disclosures about financial instruments and derivative instruments that are either offset on the statement of financial position or subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset on the statement of financial position. Entities are required to provide both net and gross information for these assets and liabilities in order to facilitate comparability between financial statements prepared on the basis of U.S. GAAP and financial statements prepared on the basis of IFRS. ASU 2011-11 is effective for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods. ASU 2011-11 is not expected to have a material impact on the Company’s financial position or results of operations.
Intangibles - Goodwill & Other	In September 2011, the FASB issued Accounting Standards Update No. 2011-08 (“ASU 2011-08”), which updates the guidance in ASC Topic 350, Intangibles – Goodwill & Other. The amendments in ASU 2011-08 permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC Topic 350. The more-likely-than-not threshold is defined as having a likelihood of more than fifty percent. If, after assessing the totality of events or circumstances, an entity determines that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. The amendments in ASU 2011-08 include examples of events and circumstances that an entity should consider in evaluating whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. However, the examples are not intended to be all-inclusive and an entity may identify other relevant events and circumstances to consider in making the determination. The examples in this ASU 2011-08 supersede the previous examples under ASC Topic 350 of events and circumstances an entity should consider in determining whether it should test for impairment between annual tests, and also supersede the examples of events and circumstances that an entity having a reporting unit with a zero or negative carrying amount should consider in determining whether to perform the second step of the impairment test. Under the amendments in ASU 2011-08, an entity is no longer permitted to carry forward its detailed calculation of a reporting unit’s fair value from a prior year as previously permitted under ASC Topic 350. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of ASU 2011-08 did not have a material impact on the Company’s financial position or results of operations.
Fair Value Measurement	In May 2011, the FASB issued Accounting Standards Update 2011-04 (“ASU 2011-04”), which updated the guidance in ASC Topic 820, Fair Value Measurement. The amendments in ASU 2011-04 generally represent clarifications of Topic 820, but also include some instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. ASU 2011-04 results in common principles and requirements for measuring fair value and for disclosing information about fair value measurements in accordance with U.S. GAAP and International Financial Reporting Standards. The amendments in ASU 2011-04 are to be applied prospectively. For public entities, the amendments are effective for interim and annual periods beginning after December 15, 2011. The adoption of ASU 2011-04 did not have a material impact on the Company’s financial position or results of operations.
Evaluating Whether an Instrument Involving a Contingency is Considered Indexed to an Entity's Own Stock	Effective January 1, 2009, the Company adopted the provisions of the Financial Accounting Standards Board (“FASB”) Accounting Codification Topic 815-40-15-5, Evaluating Whether an Instrument Involving a Contingency is Considered Indexed to an Entity’s Own Stock (“FASB ASC 815-40-15-5”). Under FASB ASC 815-40-15-5, the conversion feature embedded in the MHR Convertible Notes have been bifurcated from the host contract and accounted for separately as a derivative. The bifurcation of the embedded derivative increased the amount of debt discount thereby reducing the book value of the MHR Convertible Notes and increasing prospectively the amount of interest expense to be recognized over the life of the MHR Convertible Notes using the effective yield method.
Modifications and Extinguishments	As consideration for its consent and limitation of rights in connection with the Novartis Agreement (as described in Note 3 to these Financial Statements), the Company granted MHR warrants to purchase 865,000 shares of its common stock (the “June 2010 MHR Warrants”) under the MHR Letter Agreement (as defined below). The Company estimated the fair value of the June 2010 MHR Warrants on the date of grant using Black-Scholes models to be $1.9 million. The Company determined that the resulting modification of the MHR Convertible Notes was substantial in accordance with ASC 470-50, “Modifications and Extinguishments.” As such, the modification of the MHR Convertible Notes was accounted for as an extinguishment and restructuring of the debt, and the warrants issued to MHR were expensed as a financing fee. The fair value of the MHR Convertible Notes as of June 4, 2010 was estimated by calculating the present value of future cash flows discounted at a market rate of return for comparable debt instruments to be $17.2 million. The Company recognized a loss on extinguishment of debt in the amount of $17.0 million which represented the difference between the net carrying amount of the MHR Convertible Notes and their fair value as of the date of the Novartis Agreement and the MHR Letter Agreement.
Testing Indefinite-Lived Intangible Assets for Impairment	In July 2012, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2012-02, “Testing Indefinite-Lived Intangible Assets for Impairment” (“ASU 2012-02”). ASU 2012-02 gives entities an option to first assess qualitative factors to determine whether the existence of events and circumstances indicate that it is more likely than not that the indefinite-lived intangible asset impaired. If based on its qualitative assessment an entity concludes that it is more likely than not that the fair value of an indefinite lived intangible asset is less than its carrying amount, quantitative impairment testing is required. However, if an entity concludes otherwise, quantitative impairment testing is not required. ASU is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. ASU 2012-02 is not expected to have a material impact on the Company’s financial position or results of operations.

New Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2012

New Accounting Pronouncements [Abstract]

Disclosures about Offsetting Assets and Liabilities

In December 2011, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities” (“ASU 2011-11”). ASU 2011-11 enhances current disclosures about financial instruments and derivative instruments that are either offset on the statement of financial position or subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset on the statement of financial position. Entities are required to provide both net and gross information for these assets and liabilities in order to facilitate comparability between financial statements prepared on the basis of U.S. GAAP and financial statements prepared on the basis of IFRS. ASU 2011-11 is effective for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods. ASU 2011-11 is not expected to have a material impact on the Company’s financial position or results of operations.

Intangibles - Goodwill & Other

In September 2011, the FASB issued Accounting Standards Update No. 2011-08 (“ASU 2011-08”), which updates the guidance in ASC Topic 350, Intangibles – Goodwill & Other. The amendments in ASU 2011-08 permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC Topic 350. The more-likely-than-not threshold is defined as having a likelihood of more than fifty percent. If, after assessing the totality of events or circumstances, an entity determines that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. The amendments in ASU 2011-08 include examples of events and circumstances that an entity should consider in evaluating whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. However, the examples are not intended to be all-inclusive and an entity may identify other relevant events and circumstances to consider in making the determination. The examples in this ASU 2011-08 supersede the previous examples under ASC Topic 350 of events and circumstances an entity should consider in determining whether it should test for impairment between annual tests, and also supersede the examples of events and circumstances that an entity having a reporting unit with a zero or negative carrying amount should consider in determining whether to perform the second step of the impairment test. Under the amendments in ASU 2011-08, an entity is no longer permitted to carry forward its detailed calculation of a reporting unit’s fair value from a prior year as previously permitted under ASC Topic 350. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of ASU 2011-08 did not have a material impact on the Company’s financial position or results of operations.

Fair Value Measurement

In May 2011, the FASB issued Accounting Standards Update 2011-04 (“ASU 2011-04”), which updated the guidance in ASC Topic 820, Fair Value Measurement. The amendments in ASU 2011-04 generally represent clarifications of Topic 820, but also include some instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. ASU 2011-04 results in common principles and requirements for measuring fair value and for disclosing information about fair value measurements in accordance with U.S. GAAP and International Financial Reporting Standards. The amendments in ASU 2011-04 are to be applied prospectively. For public entities, the amendments are effective for interim and annual periods beginning after December 15, 2011. The adoption of ASU 2011-04 did not have a material impact on the Company’s financial position or results of operations.

Evaluating Whether an Instrument Involving a Contingency is Considered Indexed to an Entity's Own Stock

Effective January 1, 2009, the Company adopted the provisions of the Financial Accounting Standards Board (“FASB”) Accounting Codification Topic 815-40-15-5, Evaluating Whether an Instrument Involving a Contingency is Considered Indexed to an Entity’s Own Stock (“FASB ASC 815-40-15-5”). Under FASB ASC 815-40-15-5, the conversion feature embedded in the MHR Convertible Notes have been bifurcated from the host contract and accounted for separately as a derivative. The bifurcation of the embedded derivative increased the amount of debt discount thereby reducing the book value of the MHR Convertible Notes and increasing prospectively the amount of interest expense to be recognized over the life of the MHR Convertible Notes using the effective yield method.

Modifications and Extinguishments

As consideration for its consent and limitation of rights in connection with the Novartis Agreement (as described in Note 3 to these Financial Statements), the Company granted MHR warrants to purchase 865,000 shares of its common stock (the “June 2010 MHR Warrants”) under the MHR Letter Agreement (as defined below). The Company estimated the fair value of the June 2010 MHR Warrants on the date of grant using Black-Scholes models to be $1.9 million. The Company determined that the resulting modification of the MHR Convertible Notes was substantial in accordance with ASC 470-50, “Modifications and Extinguishments.” As such, the modification of the MHR Convertible Notes was accounted for as an extinguishment and restructuring of the debt, and the warrants issued to MHR were expensed as a financing fee. The fair value of the MHR Convertible Notes as of June 4, 2010 was estimated by calculating the present value of future cash flows discounted at a market rate of return for comparable debt instruments to be $17.2 million. The Company recognized a loss on extinguishment of debt in the amount of $17.0 million which represented the difference between the net carrying amount of the MHR Convertible Notes and their fair value as of the date of the Novartis Agreement and the MHR Letter Agreement.

Testing Indefinite-Lived Intangible Assets for Impairment

In July 2012, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2012-02, “Testing Indefinite-Lived Intangible Assets for Impairment” (“ASU 2012-02”). ASU 2012-02 gives entities an option to first assess qualitative factors to determine whether the existence of events and circumstances indicate that it is more likely than not that the indefinite-lived intangible asset impaired. If based on its qualitative assessment an entity concludes that it is more likely than not that the fair value of an indefinite lived intangible asset is less than its carrying amount, quantitative impairment testing is required. However, if an entity concludes otherwise, quantitative impairment testing is not required. ASU is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. ASU 2012-02 is not expected to have a material impact on the Company’s financial position or results of operations.

- Definition

Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.

+ References+ Details