Consolidated Statements of Financial Position (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Fixed maturities, available for sale, at fair value (amortized cost: 2013 $5,538,933; 2012 $5,662,255)	$ 6,460,973	$ 6,194,564
Equity Securites, available for sale, at fair value (cost: 2013 $567; 2012 $3,119)	34,844	29,500
Trading account assets, at fair value	60,384	49,661
Policy loans	1,127,936	1,123,912
Short-term investments	215,653	121,272
Commercial mortgage and other loans	1,726,582	1,681,553
Other long-term investments	294,287	298,143
Total investments	9,920,659	9,498,605
Cash and cash equivalents	408,321	214,952
Deferred policy acquisition costs	4,888,010	5,066,855
Accrued investment income	92,881	90,506
Reinsurance recoverables	22,057,381	20,594,371
Receivables from parents and affiliates	285,834	261,915
Deferred sales inducements	772,031	836,791
Other assets	92,462	83,417
Separate account assets	112,173,480	109,194,192
TOTAL ASSETS	150,691,059	145,841,604
LIABILITIES
Policyholders' account balances	15,446,787	15,250,055
Future policy benefits and other policyholder liabilities	15,373,608	13,915,330
Cash collateral for loaned securities	91,015	65,418
Income taxes	252,089	256,168
Short-term debt	429,804	423,000
Long-term debt	1,288,000	1,288,000
Payables to parent and affiliates	67,114	66,581
Other liabilities	891,314	828,875
Separate account liabilities	112,173,480	109,194,192
TOTAL LIABILITIES	146,013,211	141,287,619
EQUITY
Common stock, ($10 par value; 1,000,000 shares, authorized; 250,000 shares, issued and outstanding)	2,500	2,500
Additional paid-in capital	780,373	792,153
Retained earnings	3,664,871	3,580,641
Accumulated other comprehensive income	230,104	178,691
TOTAL EQUITY	4,677,848	4,553,985
TOTAL LIABILITIES AND EQUITY	$ 150,691,059	$ 145,841,604