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Commitments and Contingencies | 6 Months Ended
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Jun. 30, 2011
Commitments and Contingencies [Abstract] |
Commitments and Contingencies | Note 12. Commitments and Contingencies At June 30, 2011, we had contractual obligations that expire at various dates through 2022 to invest up to an additional $61.6 million in alternative investments. There is no certainty that any such additional investment will be required.

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- Definition Includes disclosure of commitments and contingencies. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 + Details
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