Condensed Consolidated Statements of Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Premium income	$ 76,818	$ 74,717	$ 231,745	$ 220,420
Fee income	238,364	237,501	463,429	462,778
Other revenue	3,370	1,820	6,519	3,640
Net investment income	355,755	220,169	687,540	579,025
Realized investment gains (losses), net:
Total other-than-temporary gains (losses), net	0	0	(536)	(558)
Other-than-temporary (gains) losses, net, transferred to other comprehensive income (loss)	0	0	0	108
Other realized investment gains (losses), net	42,013	15,859	73,819	34,509
Total realized investment gains (losses), net	42,013	15,859	73,283	34,059
Total revenues	716,320	550,066	1,462,516	1,299,922
Benefits and expenses:
Life and other policy benefits	170,492	160,485	357,129	310,024
Decrease in future policy benefits	(68,746)	(43,059)	(82,761)	(25,708)
Interest credited or paid to contractholders	152,460	143,761	300,770	286,652
Provision for policyholders’ share of losses on participating business	(249)	(49)	(418)	(501)
Dividends to policyholders	9,314	11,181	25,295	29,523
Total benefits	263,271	272,319	600,015	599,990
General insurance expenses	294,507	268,645	571,036	513,127
Amortization of DAC and VOBA	36,354	10,151	36,893	27,707
Interest expense	8,679	9,645	18,403	19,282
Total benefits and expenses	602,811	560,760	1,226,347	1,160,106
Income (loss) before income taxes	113,509	(10,694)	236,169	139,816
Income tax expense (benefit)	39,710	(3,679)	63,748	48,218
Net income (loss)	$ 73,799	$ (7,015)	$ 172,421	$ 91,598