CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues
Insurance premiums and contract charges earned	$ 179,138	$ 171,561	$ 354,541	$ 340,719
Net investment income	81,405	77,361	164,449	154,764
Net realized investment gains	3,463	15,417	5,162	22,279
Other income	737	1,298	1,856	2,406
Total revenues	264,743	265,637	526,008	520,168
Benefits, losses and expenses
Benefits, claims and settlement expenses	127,158	120,765	239,146	233,464
Interest credited	43,730	42,098	86,817	83,506
Policy acquisition expenses amortized	22,517	23,000	45,550	43,074
Operating expenses	39,211	39,014	79,158	77,832
Interest expense	3,546	3,549	7,092	7,103
Total benefits, losses and expenses	236,162	228,426	457,763	444,979
Income before income taxes	28,581	37,211	68,245	75,189
Income tax expense	8,129	11,216	19,427	22,182
Net income	20,452	25,995	48,818	53,007
Net income per share
Basic	$ 0.49	$ 0.65	$ 1.18	$ 1.34
Diluted	$ 0.48	$ 0.63	$ 1.16	$ 1.29
Weighted average number of shares and equivalent shares (in thousands)
Basic	41,432	39,768	41,343	39,648
Diluted	42,310	41,395	42,213	41,219
Net realized investment gains
Total other-than-temporary impairment losses on securities	(452)	(963)	(452)	(963)
Portion of losses recognized in other comprehensive income	0	0	0	0
Net other-than-temporary impairment losses on securities recognized in earnings	(452)	(963)	(452)	(963)
Realized gains, net	3,915	16,380	5,614	23,242
Total	$ 3,463	$ 15,417	$ 5,162	$ 22,279