Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investments:
Fixed maturity securities available for sale, at fair value (amortized cost - $8,230,871 in 2016 and $9,470,795 in 2015)	$ 9,039,747	$ 10,215,328
Equity securities available for sale, at fair value (cost - $361,537 in 2016 and $450,563 in 2015)	403,702	500,057
Commercial mortgage loans on real estate, at amortized cost	872,196	1,151,256
Policy loans	41,124	43,858
Short-term investments	449,691	508,950
Other investments	618,651	575,323
Total investments	11,425,111	12,994,772
Cash and cash equivalents	2,060,815	1,288,305
Premiums and accounts receivable, net	1,331,527	1,260,717
Reinsurance recoverables	8,689,823	7,470,403
Accrued investment income	114,572	129,743
Deferred acquisition costs	3,079,611	3,150,934
Property and equipment, at cost less accumulated depreciation	312,324	298,414
Tax receivable	0	24,176
Goodwill	839,766	833,512
Value of business acquired	38,950	41,154
Other intangible assets, net	274,131	277,163
Other assets	401,111	469,005
Assets held in separate accounts	1,719,454	1,798,104
Total assets	30,287,195	30,036,402
Liabilities
Future policy benefits and expenses	9,723,211	9,466,694
Unearned premiums	6,308,939	6,423,720
Claims and benefits payable	3,341,718	3,896,719
Commissions payable	354,965	393,260
Reinsurance balances payable	110,056	132,728
Funds held under reinsurance	101,400	94,417
Deferred gain on disposal of businesses	564,122	92,327
Accounts payable and other liabilities	1,825,894	2,049,810
Tax payable	258,087	0
Debt	1,414,704	1,164,656
Liabilities related to separate accounts	1,719,454	1,798,104
Total liabilities	$ 25,722,550	$ 25,512,435
Commitments and contingencies (Note 16)
Stockholders’ equity
Common stock, par value $0.01 per share, 800,000,000 shares authorized, 62,643,447 and 65,850,386 shares outstanding at March 31, 2016 and December 31, 2015, respectively	$ 1,500	$ 1,497
Additional paid-in capital	3,152,977	3,148,409
Retained earnings	5,044,544	4,856,674
Accumulated other comprehensive income	225,240	118,549
Treasury stock, at cost; 86,945,291 and 83,523,031 shares at March 31, 2016 and December 31, 2015, respectively	(3,859,616)	(3,601,162)
Total stockholders’ equity	4,564,645	4,523,967
Total liabilities and stockholders’ equity	$ 30,287,195	$ 30,036,402