v2.4.0.6

Realized and Net Change in Unrealized Gains (Losses), Other Investments (Detail) (Other Investments, USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Other Investments |  |  |  |
Gain (Loss) on Investments [Line Items] |  |  |  |
Realized Gains (Losses) | $ 541 | $ 399 | $ 796 | $ 399
Net Change in Unrealized Gains (Losses) | (2,547) | 343 | 190 | 1,292
Total realized and net change in unrealized gains (losses) | $ (2,006) | $ 742 | $ 986 | $ 1,691

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- Definition The difference between the book value and the sale price of other nonspecific investments. This element is used when other, more specific, elements are not appropriate. This element refers to the gain (loss) included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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