Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Premium income	$ 146,100	$ 154,017	$ 377,845	$ 374,437
Fee income	246,413	225,242	709,844	688,020
Other revenue	3,228	1,820	9,747	5,460
Net investment income	291,539	363,057	979,080	942,082
Realized investment gains (losses), net:
Total other-than-temporary gains (losses), net	0	(363)	(536)	(921)
Other-than-temporary (gains) losses, net, transferred to other comprehensive income (loss)	0	0	0	108
Other realized investment gains (losses), net	33,374	22,914	107,193	57,423
Total realized investment gains (losses), net	33,374	22,551	106,657	56,610
Total revenues	720,654	766,687	2,183,173	2,066,609
Benefits and expenses:
Life and other policy benefits	172,855	176,926	529,985	486,950
Increase (decrease) in future policy benefits	7,540	20,226	(75,221)	(5,482)
Interest credited or paid to contractholders	154,248	147,177	455,018	433,829
Provision for policyholders’ share of (losses) earnings on participating business	(106)	44	(525)	(457)
Dividends to policyholders	12,324	13,241	37,619	42,763
Total benefits	346,861	357,614	946,876	957,603
General insurance expenses	307,329	263,608	878,367	776,735
Amortization of DAC and VOBA	3,504	37,538	40,397	65,245
Interest expense	7,648	9,646	26,051	28,928
Total benefits and expenses	665,342	668,406	1,891,691	1,828,511
Income before income taxes	55,312	98,281	291,482	238,098
Income tax expense	15,295	30,708	79,043	78,926
Net income	$ 40,017	$ 67,573	$ 212,439	$ 159,172