Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Investments:
Fixed maturities, available for sale, at fair value (amortized cost: 2012 - $10,929,229 ; 2011 - $10,924,244)	$ 12,503,376	$ 11,888,205	[1]
Equity securities, at fair value (cost: 2012 - $14,875 ; 2011 - $14,875)	16,659	17,056	[1]
Policy loans	417,211	400,914	[1]
Other long-term investments	25,263	26,167	[1]
Short-term investments	386,025	21,244	[1]
Total investments	13,348,534	12,353,586	[1]
Cash	298,831	84,113	[1]
Accrued investment income	196,190	192,325	[1]
Other receivables	334,599	253,549	[1]
Deferred acquisition costs	2,994,744	2,916,732	[1]
Goodwill	396,891	396,891	[1]
Low-income housing interests	255,627	280,955	[1]
Other assets	114,448	110,121	[1]
Total assets	17,939,864	16,588,272	[1]
Liabilities:
Future policy benefits	9,958,274	9,572,257	[1]
Unearned and advance premiums	70,145	69,539	[1]
Policy claims and other benefits payable	236,185	222,254	[1]
Other policyholders' funds	93,148	92,487	[1]
Total policy liabilities	10,357,752	9,956,537	[1]
Current and deferred income taxes payable	1,612,052	1,319,853	[1]
Other liabilities	251,741	312,417	[1]
Short-term debt (fair value: 2012 - $324,415 ; 2011 - $224,842)	319,710	224,842	[1]
Long-term debt (fair value: 2012 - $1,168,387 ; 2011 - $947,142)	965,295	790,571	[1]
Due to affiliates	124,421	124,421	[1]
Total liabilities	13,630,971	12,728,641	[1]
Shareholders' equity:
Preferred stock, par value $1 per share - Authorized 5,000,000 shares; outstanding: -0- in 2012 and in 2011	0	0	[1]
Common stock, par value $1 per share - Authorized 320,000,000 shares; outstanding: (2012 - 112,312,123 issued, less 17,430,238 held in treasury and 2011 - 112,312,123 issued, less 11,732,658 held in treasury)	112,312	112,312	[1]
Additional paid-in capital	453,337	425,331	[1]
Accumulated other comprehensive income (loss)	960,890	549,916	[1]
Retained earnings	3,568,655	3,264,711	[1]
Treasury stock, at cost	(786,301)	(492,639)	[1]
Total shareholders' equity	4,308,893	3,859,631	[1]
Total liabilities and shareholders' equity	$ 17,939,864	$ 16,588,272	[1]

[1] Derived from audited financial statements. Additionally, 2011 balances have been retrospectively adjusted to give effect to the adoption of new accounting guidance as described in Note F-Adoption of New Accounting Standard.