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Investments (Investments Pledged as Collateral) (Details) $ in Millions	Mar. 31, 2016 USD ($)
Investments Pledged As Collateral [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	$ 63.4
Securities Pledged As Collateral For Reinsurance Obligations	11.6
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	23.8
Securities Pledged As Collateral	98.8
Outstanding Borrowing With The Federal Home Loan Bank Of Indianapolis	60.0
U.S. Government and Government Agencies [Member]
Investments Pledged As Collateral [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	7.6
Securities Pledged As Collateral For Reinsurance Obligations	0.0
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	23.8
Securities Pledged As Collateral	31.4
Obligations of States and Political Subdivisions [Member]
Investments Pledged As Collateral [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	0.0
Securities Pledged As Collateral For Reinsurance Obligations	5.0
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0.0
Securities Pledged As Collateral	5.0
Corporate Securities [Member]
Investments Pledged As Collateral [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	0.0
Securities Pledged As Collateral For Reinsurance Obligations	4.8
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0.0
Securities Pledged As Collateral	4.8
Commercial Mortgage Backed Securities [Member]
Investments Pledged As Collateral [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	1.1
Securities Pledged As Collateral For Reinsurance Obligations	0.0
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0.0
Securities Pledged As Collateral	1.1
Residential Mortgage Backed Securities [Member]
Investments Pledged As Collateral [Line Items]
Fixed Income Securities Pledged For FHLBI Collateral	54.7
Securities Pledged As Collateral For Reinsurance Obligations	1.8
Carrying Value Bonds On Deposit With Various State And Regulatory Agencies	0.0
Securities Pledged As Collateral	$ 56.5

X

- Definition

[Line Items] for Disclosure of financial instruments held by the entity for its own account for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. Description may include equity, fixed income, debt or other securities.

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The carrying value of investments pledged as collateral for reinsurance obligations

+ References

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

+ 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

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-Topic 942
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-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729

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