Segment Information (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Summary of financial information related to segments

The following tables summarize segment financial information:

	Three Months Ended June 30, 2018
	Individual		Empower
	Markets		Retirement		Other		Total
Revenue:
Premium income	$	49,955	$	1,086	$	27,114	$	78,155
Fee income	33,167		251,845		1,684		286,696
Other revenue	—		3,077		—		3,077
Net investment income	197,403		117,289		12,779		327,471
Investment gains (losses), net	32,117		8,138		1		40,256
Total revenues	312,642		381,435		41,578		735,655
Benefits and expenses:
Policyholder benefits	201,554		53,968		5,164		260,686
Operating expenses	58,422		258,871		31,797		349,090
Total benefits and expenses	259,976		312,839		36,961		609,776
Income before income taxes	52,666		68,596		4,617		125,879
Income tax expense	10,135		16,009		1,107		27,251
Net income	$	42,531	$	52,587	$	3,510	$	98,628

	Three Months Ended June 30, 2017
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	44,701	$	1,052	$	21,910		$	67,663
Fee income	29,199		236,573		1,566			267,338
Other revenue	—		3,661		—			3,661
Net investment income	192,788		92,756		11,677			297,221
Realized investment gains (losses), net	4,037		18,011		16			22,064
Total revenues	270,725		352,053		35,169			657,947
Benefits and expenses:
Policyholder benefits	198,171		50,702		20,671			269,544
Operating expenses	47,420		249,178		15,813			312,411
Total benefits and expenses	245,591		299,880		36,484			581,955
Income (loss) before income taxes	25,134		52,173		(1,315		)	75,992
Income tax expense (benefit)	8,531		17,996		(359		)	26,168
Net income (loss)	$	16,603	$	34,177	$	(956	)	$	49,824

	Six Months Ended June 30, 2018
	Individual		Empower
	Markets		Retirement			Other		Total
Revenue:
Premium income	$	173,540	$	1,675		$	47,621	$	222,836
Fee income	64,795		494,302			3,563		562,660
Other revenue	—		6,062			—		6,062
Net investment income	394,732		246,297			24,583		665,612
Investment gains (losses), net	15,447		(18,984		)	50		(3,487		)
Total revenues	648,514		729,352			75,817		1,453,683
Benefits and expenses:
Policyholder benefits	473,562		105,247			20,461		599,270
Operating expenses	101,024		518,752			46,547		666,323
Total benefits and expenses	574,586		623,999			67,008		1,265,593
Income before income taxes	73,928		105,353			8,809		188,090
Income tax expense	14,033		24,777			1,994		40,804
Net income	$	59,895	$	80,576		$	6,815	$	147,286

	Six Months Ended June 30, 2017
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	176,260	$	1,143	$	42,501		$	219,904
Fee income	55,180		463,892		3,381			522,453
Other revenue	—		6,045		—			6,045
Net investment income	376,993		210,375		23,323			610,691
Realized investment gains (losses), net	4,622		5,695		(7		)	10,310
Total revenues	613,055		687,150		69,198			1,369,403
Benefits and expenses:
Policyholder benefits	468,259		98,330		42,382			608,971
Operating expenses	85,807		504,941		41,746			632,494
Total benefits and expenses	554,066		603,271		84,128			1,241,465
Income (loss) before income taxes	58,989		83,879		(14,930		)	127,938
Income tax expense (benefit)	20,182		28,421		(5,317		)	43,286
Net income (loss)	$	38,807	$	55,458	$	(9,613	)	$	84,652