Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Premium	$ 961,817	$ 899,993	$ 2,845,354	$ 2,688,450
Net investment income	231,432	228,905	691,991	683,003
Realized gains (losses)	1,501	11,943	(29,386)	18,426
Other income	292	438	1,021	1,077
Total revenue	1,195,042	1,141,279	3,508,980	3,390,956
Benefits and expenses:
Life policyholder benefits	459,231	406,963	1,340,746	1,227,616
Health policyholder benefits	184,237	170,875	546,444	511,403
Other policyholder benefits	7,508	7,854	22,571	23,792
Total policyholder benefits	650,976	585,692	1,909,761	1,762,811
Amortization of deferred acquisition costs	140,843	138,449	430,840	412,436
Commissions, premium taxes, and non-deferred acquisition costs	74,614	74,139	229,691	221,302
Other operating expense	75,397	74,575	226,693	226,412
Interest expense	21,674	21,094	65,295	63,804
Total benefits and expenses	963,504	893,949	2,862,280	2,686,765
Income before income taxes	231,538	247,330	646,700	704,191
Income tax benefit (expense)	(42,593)	(45,512)	(119,167)	(130,370)
Income from continuing operations	188,945	201,818	527,533	573,821
Loss (income) from discontinued operations, net of income taxes	0	0	0	(92)
Net income	$ 188,945	$ 201,818	$ 527,533	$ 573,729
Basic net income (loss) per common share:
Continuing operations (in dollars per share)	$ 1.78	$ 1.85	$ 4.95	$ 5.24
Discontinued operations (in dollars per share)	0	0	0	0
Total basic net income per common share (in dollars per share)	1.78	1.85	4.95	5.24
Diluted net income (loss) per common share:
Continuing operations (in dollars per share)	1.76	1.82	4.90	5.14
Discontinued operations (in dollars per share)	0	0	0	0
Total diluted net income per common share (in dollars per share)	$ 1.76	$ 1.82	$ 4.90	$ 5.14
Life premium
Revenue:
Premium	$ 674,021	$ 630,824	$ 1,994,473	$ 1,886,314
Health premium
Revenue:
Premium	287,795	269,166	850,877	802,132
Other premium
Revenue:
Premium	$ 1	$ 3	$ 4	$ 4