Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Premium income	$ 145,504	$ 146,100	$ 365,408	$ 377,845
Fee income	264,304	246,413	786,758	709,844
Other revenue	3,322	3,228	9,367	9,747
Net investment income	300,582	291,539	911,274	979,080
Realized investment gains (losses), net:
Total other-than-temporary gains (losses), net	(2,969)	0	(3,126)	(536)
Other realized investment gains (losses), net	16,830	33,374	27,297	107,193
Total realized investment gains (losses), net	13,861	33,374	24,171	106,657
Total revenues	727,573	720,654	2,096,978	2,183,173
Benefits and expenses:
Life and other policy benefits	161,017	172,855	498,300	529,985
Increase (decrease) in future policy benefits	12,704	7,540	(51,148)	(75,221)
Interest credited or paid to contractholders	160,040	154,248	471,531	455,018
Provision for policyholders’ share of losses on participating business	(1,033)	(106)	(1,097)	(525)
Dividends to policyholders	11,513	12,324	35,627	37,619
Total benefits	344,241	346,861	953,213	946,876
General insurance expenses	293,176	307,329	884,670	878,367
Amortization of DAC and VOBA	14,076	3,504	39,798	40,397
Interest expense	7,811	7,648	23,087	26,051
Total benefits and expenses	659,304	665,342	1,900,768	1,891,691
Income before income taxes	68,269	55,312	196,210	291,482
Income tax expense	21,688	15,295	64,973	79,043
Net income	$ 46,581	$ 40,017	$ 131,237	$ 212,439