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Description of Business and Basis of Presentation (Details) (USD $) | 0 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 12, 2012 | Sep. 30, 2012
Description of Business and Basis of Presentation [Abstract] |  |
Number of patent portfolios |  | 250
Partners capital, authorized |  | $ 250,000,000
ADAPTIX, Inc. [Member] |  |
Business Acquisition [Line Items] |  |
Cash payments to acquire businesses | $ 160,000,000 | $ 160,000,000

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- Definition Authorized amount of capital to be raised by the fund. + References No definition available. + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. + Details
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