CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues
Insurance premiums and contract charges earned	$ 185,450	$ 179,739
Net investment income	84,659	83,313
Net realized investment gains (losses)	(154)	6,068
Other income	1,348	999
Total revenues	271,303	270,119
Benefits, losses and expenses
Benefits, claims and settlement expenses	119,513	114,019
Interest credited	46,690	44,537
Policy acquisition expenses amortized	24,052	23,684
Operating expenses	42,796	35,928
Interest expense	2,935	3,552
Total benefits, losses and expenses	235,986	221,720
Income before income taxes	35,317	48,399
Income tax expense	10,164	14,124
Net income	$ 25,153	$ 34,275
Net income per share
Basic	$ 0.61	$ 0.82
Diluted	$ 0.61	$ 0.81
Weighted average number of shares and equivalent shares (in thousands)
Basic	41,297	41,950
Diluted	41,492	42,300
Net realized investment gains (losses)
Total other-than-temporary impairment losses on securities	$ (3,673)	$ (2,289)
Portion of losses recognized in other comprehensive income	0	0
Net other-than-temporary impairment losses on securities recognized in earnings	(3,673)	(2,289)
Realized gains, net	3,519	8,357
Total	$ (154)	$ 6,068