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Settlement Agreement with Samsung (Details 2) (USD $)	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Jan. 19, 2011
Current revenue
Revenue		$ 68,200,000		$ 181,200,000
Gain from settlement	10,300,000	6,200,000	116,500,000	126,800,000
Purchase of Rambus Common Stock				192,000,000
Total		74,400,000		500,000,000
Expected revenue
Remainder of 2011		25,000,000
2012		100,000,000
2013		100,000,000
2014		100,000,000
Estimated fair value
Revenue					574,400,000
Gain from settlement					133,000,000
Purchase of Rambus Common Stock					192,000,000
Total					$ 899,400,000

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The amount of revenue expected to be recognized during year two of the three succeeding fiscal years based on the estimates at the balance sheet date.

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The amount of revenue expected to be recognized during the remainder of the current fiscal year based on the estimates at the balance sheet date.

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The amount of revenue expected to be recognized during year one of the three succeeding fiscal years based on the estimates at the balance sheet date.

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The amount of revenue expected to be recognized during year three of the three succeeding fiscal years based on the estimates at the balance sheet date.

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Represents the expected recognition related to the gain from settlement.

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Represents the expected recognition related to the stock purchase agreement.

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Represents the revenue recognized related to the agreement with Samsung.

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Represents the estimated fair value of the settlement agreement which Samsung has agreed to pay.

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Represents the temporary equity and equity impacts related to the Settlement Agreement with Samsung during the period.

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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.

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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

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