Significant Accounting Policies Description of the Company Narrative (Details) (USD $)
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12 Months Ended |
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Dec. 31, 2013
segment
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Description Of Company And Significant Accounting Policies [Line Items] | |
Number of reportable segments | 2 |
Initial And Ongoing Capital Requirement [Member] | Minimum [Member]
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Description Of Company And Significant Accounting Policies [Line Items] | |
Initial capital contribution | $ 5,000,000 |
Follow-on financings | 5,000,000 |
Initial And Ongoing Capital Requirement [Member] | Maximum [Member]
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Description Of Company And Significant Accounting Policies [Line Items] | |
Initial capital contribution | 15,000,000 |
Follow-on financings | 10,000,000 |
Anticipated contribution to partner companies | $ 25,000,000 |