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Schedule 2 - Parent Company Financial Statements - Balance Sheets (Parenthetical) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Amortized Cost of Fixed Maturity Securities | $ 4,370.5 | $ 4,283.8
Fair Value of Notes Payable | 667.1 | 675.5
Senior Notes [Member] | Senior Notes Payable, 6.00% due 2017 [Member] |  |
Senior Notes Payable, Interest Rate | 6.00% |
Senior Notes [Member] | Senior Notes Payable, 6.00% due 2015 [Member] |  |
Senior Notes Payable, Interest Rate | 6.00% |
Parent Company [Member] |  |
Amortized Cost of Fixed Maturity Securities | 0 | 0
Trading Securities, Cost | 4.7 | 4.9
Parent Company [Member] | Senior Notes [Member] | Senior Notes Payable, 6.00% due 2017 [Member] |  |
Fair Value of Notes Payable | 395.5 | 393.7
Senior Notes Payable, Interest Rate | 6.00% | 6.00%
Parent Company [Member] | Senior Notes [Member] | Senior Notes Payable, 6.00% due 2015 [Member] |  |
Fair Value of Notes Payable | $ 271.6 | $ 276.3
Senior Notes Payable, Interest Rate | 6.00% | 6.00%

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- Definition Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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