v2.3.0.11

Fair Value Disclosures (Narrative) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2011 Maximum [Member] U.S. Treasury [Member]	Jun. 30, 2011 Maximum [Member] Corporate/Other [Member]	Jun. 30, 2011 Minimum [Member] U.S. Treasury [Member]	Jun. 30, 2011 Minimum [Member] Corporate/Other [Member]	Jun. 30, 2011 U.S. Treasury [Member]	Jun. 30, 2010 U.S. Treasury [Member]	Jun. 30, 2011 U.S. Treasury [Member]	Jun. 30, 2010 U.S. Treasury [Member]	Jun. 30, 2011 Corporate/Other [Member]	Jun. 30, 2010 Corporate/Other [Member]	Jun. 30, 2011 Corporate/Other [Member]	Jun. 30, 2010 Corporate/Other [Member]
Net realized gain on available-for-sale debt securities							$ 0.2	$ 0.1	$ 0.3	$ 0.1	$ 0.5	$ 0.3	$ 1.0	$ 0.7
Available-for-sale securities, mature less than one year							0.7		0.7		1.0		1.0
Available-for-sale securities maturity period			Greater than one year	Greater than one year	Less than one year	Less than one year
Assets acquired at fair value	19.3
Investments in corporate owned life insurance	$ 27.0	$ 26.0

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Available for sale securities maturity period.

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- Definition

This item represents the fair value of debt securities which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities.

+ References

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 20
-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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-SubTopic 320
-Section 50
-Paragraph 3
-Subparagraph (a)
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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.

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-Section 50
-Paragraph 9
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The fair value of assets acquired in noncash investing or financing activities.

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This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Subparagraph (SX 210.5-02.12)
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-Publisher SEC
-Name Regulation S-X (SX)
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-Section 02
-Paragraph 12
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