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Fair Value of Financial Instruments (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investments
Other investments, Carrying Amount	$ 148,686	$ 148,759
Other investments, Fair Value	153,150	153,228
Financial Liabilities
Investment contract and life policy reserves, fixed annuity contracts, Carrying Amount	4,128,205	4,072,102
Investment contract and life policy reserves, fixed annuity contracts, Fair value	4,004,390	4,049,840
Investment contract and life policy reserves, account values on life contracts, Carrying Amount	77,562	77,429
Investment contract and life policy reserves, account values on life contracts, Fair value	81,486	81,360
Other policyholder funds, Carrying Amount	651,834	653,631
Other policyholder funds, Fair Value	651,834	653,631
Long-term debt, Carrying Amount	247,022	246,975
Long-term debt, Fair Value	254,700	252,700
Level 1 [Member]
Investments
Other investments, Fair Value	0	0
Financial Liabilities
Investment contract and life policy reserves, fixed annuity contracts, Fair value	0	0
Investment contract and life policy reserves, account values on life contracts, Fair value	0	0
Other policyholder funds, Fair Value	0	0
Long-term debt, Fair Value	254,700	252,700
Level 2 [Member]
Investments
Other investments, Fair Value	0	0
Financial Liabilities
Investment contract and life policy reserves, fixed annuity contracts, Fair value	0	0
Investment contract and life policy reserves, account values on life contracts, Fair value	0	0
Other policyholder funds, Fair Value	575,256	575,104
Long-term debt, Fair Value	0	0
Level 3 [Member]
Investments
Other investments, Fair Value	153,150	153,228
Financial Liabilities
Investment contract and life policy reserves, fixed annuity contracts, Fair value	4,004,390	4,049,840
Investment contract and life policy reserves, account values on life contracts, Fair value	81,486	81,360
Other policyholder funds, Fair Value	76,578	78,527
Long-term debt, Fair Value	$ 0	$ 0

X

- Definition

The fair value of accrued obligation to policyholders that relates to insured events under individual and group annuities and supplementary insurance contracts.

+ References

No definition available.

+ Details

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X

- Definition

Liability for policy holder account balances life.

+ References

No definition available.

+ Details

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X

- Definition

Liability for policyholder account balances life fair value.

+ References

No definition available.

+ Details

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X

- Definition

Fair Value of the liability as of the balance sheet date to the policyholders for funds held that are returnable under the terms of insurance contracts that were not separately reported.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
-URI http://asc.fasb.org/extlink&oid=6526789

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Available-for-Sale Securities
-URI http://asc.fasb.org/extlink&oid=6505594

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 1
-Subparagraph a, f, g
-Article 7

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- Definition

Amount of accrued obligation to policyholders that relates to insured events under individual and group annuities and supplementary insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 25
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=28366191&loc=d3e13145-158430

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.13(a)(1))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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X

- Definition

Other investments not otherwise specified in the taxonomy.

+ 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 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Paragraph 1
-Subparagraph (SX 210.7-03.1(f,g))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Liability as of the balance sheet date to the policyholders for funds held that are returnable under the terms of insurance contracts that were not separately reported.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.14)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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