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Fair Value of Financial Instruments (Details 2) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investments
Other investments, Carrying Amount	$ 147,435	$ 145,409
Other investments, Fair Value	151,866	149,792
Financial Liabilities
Fixed annuity contract liabilities, Carrying Amount	4,016,360	3,774,457
Fixed annuity contract liabilities, Fair value	3,927,685	3,691,123
Policyholder account balances on interest-sensitive life contracts, Carrying Amount	77,068	77,415
Policyholder account balances on interest-sensitive life contracts, Fair value	81,096	81,461
Other policyholder funds, Carrying Amount	580,895	586,689
Other policyholder funds, Fair Value	580,895	586,689
Short-term debt, Carrying Amount	113,000	38,000
Short-term debt, Fair Value	113,000	38,000
Long-term debt, Carrying Amount	124,979	199,939
Long-term debt, Fair Value	128,718	209,495
Level 1 [Member]
Investments
Other investments, Fair Value	0	0
Financial Liabilities
Fixed annuity contract liabilities, Fair value	0	0
Policyholder account balances on interest-sensitive life contracts, Fair value	0	0
Other policyholder funds, Fair Value	0	0
Short-term debt, Fair Value	0	0
Long-term debt, Fair Value	128,718	209,495
Level 2 [Member]
Investments
Other investments, Fair Value	0	0
Financial Liabilities
Fixed annuity contract liabilities, Fair value	0	0
Policyholder account balances on interest-sensitive life contracts, Fair value	0	0
Other policyholder funds, Fair Value	500,084	500,080
Short-term debt, Fair Value	113,000	38,000
Long-term debt, Fair Value	0	0
Level 3 [Member]
Investments
Other investments, Fair Value	151,866	149,792
Financial Liabilities
Fixed annuity contract liabilities, Fair value	3,927,685	3,691,123
Policyholder account balances on interest-sensitive life contracts, Fair value	81,096	81,461
Other policyholder funds, Fair Value	80,811	86,609
Short-term debt, Fair Value	0	0
Long-term debt, Fair Value	$ 0	$ 0

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- Definition

Liability for future policy benefits individual and group annuities and supplementary contracts fair value disclosure.

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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.

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

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



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

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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.

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Other investments not otherwise specified in the taxonomy.

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