Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Investments:
Fixed-maturity securities and Short-term investments available-for-sale, at fair value	$ 2,453,076	$ 2,356,996
Fixed-maturity security held-to-maturity, at amortized cost (fair value: $1,563,352 in 2020 and $1,299,102 in 2019)	1,323,740	1,184,370
Equity securities, at fair value (historical cost: $29,952 in 2020 and $32,671 in 2019)	33,856	40,684
Trading securities, at fair value (cost: $13,489 in 2020 and $43,257 in 2019)	13,470	43,233
Policy loans	30,605	32,927
Total investments	3,854,747	3,658,210
Cash and cash equivalents	330,877	256,876
Accrued investment income	18,448	17,361
Reinsurance recoverables	4,229,088	4,169,823
Deferred policy acquisition costs, net	2,532,409	2,325,750
Agent balances, due premiums and other receivables	280,915	227,100
Intangible assets	45,275	45,275
Income taxes	72,707	70,492
Operating lease right-of-use assets	47,685	47,265
Other assets	420,051	384,634
Separate account assets	2,468,328	2,485,745
Total assets	14,300,530	13,688,531
Liabilities:
Future policy benefits	6,664,061	6,446,569
Unearned and advance premiums	18,308	15,470
Policy claims and other benefits payable	467,609	339,954
Other policyholders’ funds	425,537	388,663
Notes payable	374,320	374,037
Surplus note	1,323,146	1,183,728
Income taxes	216,640	209,221
Operating lease liabilities	53,889	53,487
Other liabilities	519,363	510,443
Payable under securities lending	48,883	28,723
Separate account liabilities	2,468,328	2,485,745
Commitments and contingent liabilities (see Commitments and Contingent Liabilities note)
Total liabilities	12,580,084	12,036,040
Stockholders’ equity:
Common stock ($0.01 par value; authorized 500,000 shares in 2020 and 2019; issued and outstanding 39,374 shares in 2020 and 41,207 shares in 2019)	394	412
Retained earnings	1,629,114	1,593,281
Accumulated other comprehensive income (loss), net of income tax:
Unrealized foreign currency translation gains (losses)	(14,820)	(5,765)
Net unrealized investment gains (losses) on available-for-sale securities:	105,758	64,563
Total stockholders’ equity	1,720,446	1,652,491
Total liabilities and stockholders’ equity	$ 14,300,530	$ 13,688,531