Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost $15,509,373 and $16,756,216)	$ 16,249,035	$ 18,188,344
Fixed maturities, held for trading, at fair value (amortized cost $265,198 and $356,012)	272,855	367,600
Mortgage loans on real estate (net of allowances of $2,890 and $2,890)	3,039,245	2,881,758
Policy loans	4,145,260	4,260,200
Short-term investments, available-for-sale (amortized cost $2,260,710 and $266,332)	2,260,710	266,332
Limited partnership and other corporation interests	92,569	124,814
Other investments	17,476	21,328
Total investments	26,077,150	26,110,376
Other assets:
Cash	47,240	11,387
Reinsurance receivable	606,244	638,797
Deferred acquisition costs ("DAC") and value of business acquired ("VOBA")	345,612	204,461
Investment income due and accrued	287,440	257,028
Collateral under securities lending agreements	65,711	142,022
Due from parent and affiliates	85,758	82,828
Goodwill	105,255	105,255
Other intangible assets	16,000	18,249
Other assets	763,305	609,623
Assets of discontinued operations	29,894	33,053
Separate account assets	25,849,162	24,605,526
Total assets	54,278,771	52,818,605
Policy benefit liabilities:
Future policy benefits	24,241,441	23,480,618
Policy and contract claims	333,645	321,375
Policyholders' funds	326,639	374,821
Provision for policyholders' dividends	65,129	63,102
Undistributed earnings on participating business	11,639	10,393
Total policy benefit liabilities	24,978,493	24,250,309
General liabilities:
Due to parent and affiliates	546,638	544,447
Commercial paper	99,988	97,987
Payable under securities lending agreements	65,711	142,022
Deferred income tax liabilities, net	87,795	288,995
Other liabilities	800,319	719,969
Liabilities of discontinued operations	29,894	33,053
Separate account liabilities	25,849,162	24,605,526
Total liabilities	52,458,000	50,682,308
Commitments and contingencies
Stockholder's equity:
Preferred stock, $1 par value, 50,000,000 shares authorized; none issued and outstanding
Common stock, $1 par value, 50,000,000 shares authorized; 7,032,000 shares issued and outstanding	7,032	7,032
Additional paid-in capital	773,079	771,041
Accumulated other comprehensive income	274,318	635,699
Retained earnings	766,342	722,525
Total stockholder's equity	1,820,771	2,136,297
Total liabilities and stockholder's equity	$ 54,278,771	$ 52,818,605