CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fixed maturity securities:
Available-for-sale at fair value (amortized cost of $26,305,332 and $23,105,597)	$ 28,063,975	$ 25,480,972
Mortgage loans on real estate (net of allowances of $5,942 and $6,471)	3,073,313	2,712,238
Policy loans	1,438,156	1,284,284
Funds withheld at interest	5,840,076	5,922,561
Short-term investments	76,118	97,694
Other invested assets	1,110,107	1,198,319
Total investments	39,601,745	36,696,068
Cash and cash equivalents	1,335,661	1,645,669
Accrued investment income	322,069	261,096
Premiums receivable and other reinsurance balances	1,518,208	1,527,729
Reinsurance ceded receivables	711,463	578,206
Deferred policy acquisition costs	3,299,541	3,342,575
Other assets	671,584	628,268
Total assets	47,460,271	44,679,611
Liabilities and Stockholders’ Equity
Future policy benefits	16,773,035	14,476,637
Interest-sensitive contract liabilities	13,516,059	12,591,497
Other policy claims and benefits	3,857,610	3,824,069
Other reinsurance balances	311,388	306,915
Deferred income taxes	2,246,086	2,365,817
Other liabilities	1,032,980	994,230
Long-term debt	2,313,470	2,314,293
Collateral finance and securitization notes	926,410	782,701
Total liabilities	$ 40,977,038	$ 37,656,159
Commitments and contingent liabilities (See Note 8)
Stockholders’ Equity:
Preferred stock - par value $.01 per share, 10,000,000 shares authorized, no shares issued or outstanding	$ 0	$ 0
Common stock - par value $.01 per share, 140,000,000 shares authorized, 79,137,758 shares issued at June 30, 2015 and December 31, 2014	791	791
Additional paid-in-capital	1,805,858	1,798,279
Retained earnings	4,425,302	4,239,647
Treasury stock, at cost - 12,716,098 and 10,364,797 shares	(898,082)	(672,394)
Accumulated other comprehensive income	1,149,364	1,657,129
Total stockholders’ equity	6,483,233	7,023,452
Total liabilities and stockholders’ equity	$ 47,460,271	$ 44,679,611