CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Insurance premiums and contract charges earned	$ 195,722	$ 185,450
Net investment income	90,711	84,659
Net realized investment losses	(242)	(154)
Other income	1,113	1,348
Total revenues	287,304	271,303
Benefits, losses and expenses
Benefits, claims and settlement expenses	144,096	119,513
Interest credited	48,774	46,690
Policy acquisition expenses amortized	24,886	24,052
Operating expenses	48,756	42,796
Interest expense	2,956	2,935
Total benefits, losses and expenses	269,468	235,986
Income before income taxes	17,836	35,317
Income tax expense	2,518	10,164
Net income	$ 15,318	$ 25,153
Net income per share
Basic	$ 0.37	$ 0.61
Diluted	$ 0.37	$ 0.61
Weighted average number of shares and equivalent shares (in thousands)
Basic	41,135	41,297
Diluted	41,342	41,492
Net realized investment gains (losses)
Total other-than-temporary impairment losses on securities	$ (2,797)	$ (3,673)
Portion of losses recognized in other comprehensive income	0	0
Net other-than-temporary impairment losses on securities recognized in earnings	(2,797)	(3,673)
Realized gains, net	2,555	3,519
Total	$ (242)	$ (154)