Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments:
Fixed-maturity securities and Short-term investments available-for-sale, at fair value	$ 2,357,154	$ 2,356,996
Fixed-maturity security held-to-maturity, at amortized cost (fair value: $1,495,594 in 2020 and $1,299,102 in 2019)	1,278,580	1,184,370
Equity securities, at fair value (historical cost: $30,451 in 2020 and $32,671 in 2019)	33,689	40,684
Trading securities, at fair value (cost: $22,436 in 2020 and $43,257 in 2019)	22,399	43,233
Policy loans	31,471	32,927
Total investments	3,723,293	3,658,210
Cash and cash equivalents	360,351	256,876
Accrued investment income	16,940	17,361
Reinsurance recoverables	4,217,129	4,169,823
Deferred policy acquisition costs, net	2,434,462	2,325,750
Agent balances, due premiums and other receivables	270,421	227,100
Intangible assets	45,275	45,275
Income taxes	69,408	70,492
Operating lease right-of-use assets	48,487	47,265
Other assets	401,129	384,634
Separate account assets	2,377,654	2,485,745
Total assets	13,964,549	13,688,531
Liabilities:
Future policy benefits	6,567,169	6,446,569
Unearned and advance premiums	18,619	15,470
Policy claims and other benefits payable	412,446	339,954
Other policyholders’ funds	424,018	388,663
Notes payable	374,226	374,037
Surplus note	1,277,970	1,183,728
Income taxes	265,369	209,221
Operating lease liabilities	54,680	53,487
Other liabilities	519,745	510,443
Payable under securities lending	29,973	28,723
Separate account liabilities	2,377,654	2,485,745
Commitments and contingent liabilities (see Commitments and Contingent Liabilities note)
Total liabilities	12,321,869	12,036,040
Stockholders’ equity:
Common stock ($0.01 par value; authorized 500,000 shares in 2020 and 2019; issued and outstanding 39,667 shares in 2020 and 41,207 shares in 2019)	397	412
Retained earnings	1,569,689	1,593,281
Accumulated other comprehensive income (loss), net of income tax:
Unrealized foreign currency translation gains (losses)	(21,132)	(5,765)
Net unrealized investment gains (losses) on available-for-sale securities:	93,726	64,563
Total stockholders’ equity	1,642,680	1,652,491
Total liabilities and stockholders’ equity	$ 13,964,549	$ 13,688,531