v2.4.0.6

Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2011
Income Taxes |
Significant components of the Company's deferred tax assets |
|  | December 31, |
--- | --- | --- | ---
(in thousands) |  | 2011 |  | 2010 |
Deferred tax assets: |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 359,000 |  | $ | 311,000 |
Deferred revenues |  |  | 56,000 |  |  | 63,000 |
Capitalized research and development expenditures |  |  | 35,000 |  |  | 34,000 |
Research and development tax credit carryforwards |  |  | 37,000 |  |  | 34,000 |
Other |  |  | 31,000 |  |  | 26,000 |
Valuation allowance |  |  | (518,000 | ) |  | (468,000 | )
Net deferred tax assets |  | $ | — |  | $ | —
Reconciliation of gross unrecognized tax benefits |
Gross unrecognized tax benefits as of January 1, 2009 |  | $ | 36,200 |
Gross decrease for tax positions for prior years |  |  | (100 | )
Gross increase in tax positions for current year |  |  | 3,500 |
Unrecognized tax benefits as of December 31, 2009 |  |  | 39,600 |
Gross decrease for tax positions for prior years |  |  | — |
Gross increase in tax positions for current year |  |  | 3,000 |
Unrecognized tax benefits as of December 31, 2010 |  |  | 42,600 |
Gross decrease for tax positions for prior years |  |  | — |
Gross increase in tax positions for current year |  |  | 4,300 |
Unrecognized tax benefits as of December 31, 2011 |  | $ | 46,900

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 740 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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