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Contingencies (Details) (USD $)
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6 Months Ended | 1 Months Ended | 6 Months Ended | 20 Months Ended | 19 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jan. 09, 2009
Patent Matters [Member]
Rambus Patent Litigation Delaware [Member]
integer
|
Aug. 28, 2000
Patent Matters [Member]
Rambus Patent Litigation Delaware [Member]
integer
|
Jan. 13, 2006
Patent Matters [Member]
Rambus Patent Litigation Northern California [Member]
integer
|
Jul. 08, 2011
Patent Matters [Member]
Panavision Imaging Patent Litigation [Member]
integer
|
Mar. 10, 2011
Patent Matters [Member]
Panavision Imaging Patent Litigation [Member]
integer
|
Feb. 07, 2011
Patent Matters [Member]
Panavision Imaging Patent Litigation [Member]
integer
|
Mar. 06, 2009
Patent Matters [Member]
Panavision Imaging Patent Litigation [Member]
integer
|
Sep. 01, 2011
Patent Matters [Member]
HSM Portfolio LLC and Technology Properties LLC [Member]
integer
|
Nov. 16, 2011
Patent Matters [Member]
Advanced Data Access LLC [Member]
integer
|
Sep. 09, 2011
Patent Matters [Member]
Advanced Data Access LLC [Member]
integer
|
Sep. 14, 2011
Patent Matters [Member]
Smart Memory Solutions LLC [Member]
integer
|
Dec. 05, 2011
Patent Matters [Member]
Board Of Trustees For The University Of Illinois [Member]
integer
|
Mar. 26, 2012
Patent Matters [Member]
Semiconductor Technologies, LLC [Member]
integer
|
Mar. 01, 2012
Antitrust Matters [Member]
Rambus DRAM Complaint [Member]
|
Jul. 31, 2006
Antitrust Matters [Member]
DRAM Purported Class Action Price-fixing Lawsuit [Member]
integer
|
Mar. 01, 2012
Antitrust Matters [Member]
DRAM Purported Class Action Price-fixing Lawsuit [Member]
integer
|
Mar. 01, 2012
Antitrust Matters [Member]
DRAM Purported Class Action Price-fixing Lawsuit [Member]
|
Jun. 23, 2010
Antitrust Matters [Member]
DRAM Purported Class Action Price-fixing Lawsuit [Member]
integer
|
Jun. 30, 2006
Antitrust Matters [Member]
Canadian DRAM Putative Class Action Price-fixing Lawsuit [Member]
integer
|
Mar. 23, 2012
Antitrust Matters [Member]
Oracle Dram Price Fixing Suit [Member]
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| Loss Contingencies [Line Items] | ||||||||||||||||||||
| Approximation of damages claimed | $ 3,900,000,000 | |||||||||||||||||||
| Number of lawsuits filed | 68 | 3 | ||||||||||||||||||
| Approximate number of U.S. states and territories filing suit | 40 | |||||||||||||||||||
| Settlement agreement amount | 67,000,000 | 58,000,000 | ||||||||||||||||||
| Settlement agreement number of installment payments | 3 | |||||||||||||||||||
| Settlement agreement number of years for installment payments (in years) | 2Y | |||||||||||||||||||
| Amount paid into an escrow account in connection with settlement | $ 45,000,000 | |||||||||||||||||||
| Number of other defendants | 17 | 7 | ||||||||||||||||||
| Alleged number of patents infringed | 12 | 14 | 4 | 2 | 2 | 1 | 3 | 5 | ||||||||||||
| Court ruling patents unenforceable against us due to spoliation (number of patents) | 12 | |||||||||||||||||||
| Court ruling patents in suit was invalid for indefiniteness (number of patents) | 1 | |||||||||||||||||||
| Court ruling patents in suit dismissed with prejudice (number of patents) | 3 | |||||||||||||||||||
| Court ruling patents in suit was invalid for indefiniteness rescinded (number of patents) | 1 |