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Settlement Agreement with Samsung (Details) (USD $) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2011 | Jan. 31, 2010 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010 | Dec. 31, 2010 | Jul. 20, 2011 | Jan. 19, 2010 year
Settlement Agreement with Samsung |  |  |  |  |  |  |  |
Issuance of common stock due to the settlement with Samsung (in shares) |  | 9,600,000 |  |  |  |  |  |
Beginning period for validity of sell back right due to the settlement agreement with Samsung (in months) |  |  |  |  |  |  |  | $ 18
Ending period for validity of sell back right due to the settlement agreement with Samsung (in months) |  |  |  |  |  |  |  | $ 19
Maximum number of shares sell back due to the settlement agreement with Samsung (in shares) |  |  |  |  |  |  |  | 4,800,000
Original issue price per share due to the settlement agreement with Samsung (in dollars per share) |  |  |  |  |  |  |  | $ 20.885
Actual number of shares put back due to the settlement agreement with Samsung within 30 days (in shares) |  |  |  |  |  |  | 4,800,000 |
Actual value of shares put back |  |  |  |  |  |  | $ 100,000,000 |
Amount paid for actual value of shares put back | 100,000,000 |  |  | 100,000,000 |  |  |  |
Period of non-exclusive rights to certain patents (in years) |  |  |  |  |  |  |  | 5
Litigation settlement payments by Samsung |  |  |  | 74,400,000 |  |  |  |
Revenue |  |  |  | 68,200,000 |  | 181,200,000 |  |
Gain from settlement |  |  | 10,300,000 | 6,200,000 | 116,500,000 | 126,800,000 |  |
Remaining balance to be received |  |  |  | 325,000,000 |  |  |  |
Approximate proceeds under license agreement (per quarter), due to settlement agreement with Samsung |  |  |  | $ 25,000,000 |  |  |  |

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- Definition Represents the actual value for the shares under the put back facility of the stock purchase agreement within 30 days. + Details
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- Definition Represents future quarterly payments required to be made by Samsung under the License Agreement based on the estimates at the balance sheet date. + Details
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- Definition The cash outflow to reacquire contingently redeemable common stock during the period. + Details
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- Definition Represents the period over which Samsung needs to make periodic payments under the license agreement (in years). + Details
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- Definition Represents the revenue recognized related to the agreement with Samsung. + Details
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- Definition Represents the balance at the end of the period under the settlement agreement which Samsung has agreed to pay. + Details
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- Definition The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -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 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349 + Details
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- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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