Investments (Investments Pledged as Collateral) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	$ 61.6
Securities Pledged As Collateral For Reinsurance Obligations	15.3
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	25.6
Securities Pledged As Collateral	102.5
Outstanding Borrowing With The Federal Home Loan Bank Of Indianapolis	58
U.S. Government and Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	22.8
Securities Pledged As Collateral For Reinsurance Obligations	0
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	25.6
Securities Pledged As Collateral	48.4
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	0
Securities Pledged As Collateral For Reinsurance Obligations	5.7
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0
Securities Pledged As Collateral	5.7
Corporate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	0
Securities Pledged As Collateral For Reinsurance Obligations	5.3
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0
Securities Pledged As Collateral	5.3
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	0
Securities Pledged As Collateral For Reinsurance Obligations	2.0
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0
Securities Pledged As Collateral	2.0
Commercial Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	1.2
Securities Pledged As Collateral For Reinsurance Obligations	0
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0
Securities Pledged As Collateral	1.2
Residential Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	37.6
Securities Pledged As Collateral For Reinsurance Obligations	2.3
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0
Securities Pledged As Collateral	$ 39.9

Total value amount of investments pledged as collateral

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- Definition

The carrying value of investments pledged as collateral for reinsurance obligations

+ References

No definition available.

+ Details

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- Definition

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 320

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=28366721&loc=d3e22002-158495

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- Definition

Amount of the collateral pledged in support of federal home loan bank advances outstanding.

+ References

+ Details

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- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64702-112823

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