v2.4.0.8

Fair Value Disclosures (Narrative) (Details) (USD $) In Millions, unless otherwise specified |  | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 31, 2013 | Jun. 30, 2013 Government [Member] | Jun. 30, 2012 Government [Member] | Jun. 30, 2013 Government [Member] | Jun. 30, 2012 Government [Member] | Jun. 30, 2013 Corporate/Other Bonds [Member] | Jun. 30, 2012 Corporate/Other Bonds [Member] | Jun. 30, 2013 Corporate/Other Bonds [Member] | Jun. 30, 2012 Corporate/Other Bonds [Member]
Fair Value Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Gross Realized Gain (Loss) |  | $ 0.2 | $ 0.2 | $ 0.4 | $ 0.2 | $ 0.1 | $ 0 | $ 0.3 | $ 0.1
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value |  | 0.4 |  | 0.4 |  | 4.0 |  | 4.0 |
Disposal Group, Including Discontinued Operation, Goodwill | $ 11.0 |  |  |  |  |  |  |  |

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- Definition Amount of available-for-sale debt securities at fair value maturing in the next fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27198-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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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 Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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- Definition For the disposal group, including a component of the entity (discontinued operation), carrying amount of goodwill (adjusted for any amortization recognized prior to adoption of FAS 142 and impairment charges). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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