Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Life premium	$ 575,837	$ 544,151
Health premium	244,791	235,697
Other premium	3	12
Total premium	820,631	779,860
Net investment income	208,282	197,053
Realized investment gains (losses)	(5,748)	293
Other income	416	421
Total revenue	1,023,581	977,627
Benefits and expenses:
Life policyholder benefits	391,079	362,860
Health policyholder benefits	157,751	152,775
Other policyholder benefits	8,946	9,338
Total policyholder benefits	557,776	524,973
Amortization of deferred acquisition costs	125,908	118,806
Commissions, premium taxes, and non-deferred acquisition costs	65,116	61,602
Other operating expense	62,341	57,429
Interest expense	20,699	19,369
Total benefits and expenses	831,840	782,179
Income before income taxes	191,741	195,448
Income taxes	(54,563)	(61,874)
Income from continuing operations	137,178	133,574
Income (loss) from discontinued operations, net of tax	(3,637)	(9,541)
Net income	$ 133,541	$ 124,033
Basic net income (loss) per common share:
Continuing operations (in dollars per share)	$ 1.16	$ 1.10
Discontinued operations (in dollars per share)	(0.03)	(0.08)
Total basic net income per common share (in dollars per share)	1.13	1.02
Diluted net income (loss) per common share:
Continuing operations (in dollars per share)	1.14	1.08
Discontinued operations (in dollars per share)	(0.03)	(0.07)
Total diluted net income per common share (in dollars per share)	1.11	1.01
Dividends declared per common share (in dollars per share)	$ 0.15	$ 0.14