Note 6 - Investments Realized Gain (Loss) on Sale of Available For Sale Securities (Details) (USD $) In Millions, unless otherwise specified			9 Months Ended
Jun. 30, 2011 years	Dec. 31, 2010	Sep. 30, 2011 Categories of Investments, Marketable Securities, Available-for-sale Securities [Member]
Gain (Loss) on Investments [Line Items]
Numer Of States Included In The Master Settlement Agreement With Domestic Tobacco Manufacturers		46
Available-for-sale Securities, Gross Realized Gain (Loss)			$ 53.7
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds			$ 94.3
Number Of Classes Of Tobacco Bonds Moodys Took Rating Actions On		67
Number Of Transactions Within The Classes Of Tobacco Bonds Moodys Took Rating Actions On		19
Number Of Years Since April 2011 That Master Settlement Agreement Payments Have Been At Their Lowest Levels	5

Number Of Classes Of Tobacco Bonds Moodys Took Rating Actions On

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- Definition

Number Of Transactions Within The Classes Of Tobacco Bonds Moodys Took Rating Actions On

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- Definition

The MSA payments on the tobacco bonds were at their lowest level in this expressed number of years.

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- Definition

Numer Of States Included In The Master Settlement Agreement With Domestic Tobacco Manufacturers

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- Definition

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

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- Definition

The total amount of proceeds received for the sale of securities, categorized neither as held-to-maturity nor trading securities, during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 21

-Subparagraph a

-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 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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