Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Summary of financial information related to segments

The following tables summarize segment financial information:

	Three Months Ended June 30, 2016
	Individual		Empower
	Markets		Retirement		Other		Total
Revenue:
Premium income	$	51,053	$	362	$	25,403	$	76,818
Fee income	25,546		211,414		1,404		238,364
Other revenue	—		3,370		—		3,370
Net investment income	226,193		117,055		12,507		355,755
Realized investment gains (losses), net	14,771		27,242		—		42,013
Total revenues	317,563		359,443		39,314		716,320
Benefits and expenses:
Policyholder benefits	201,472		51,939		9,860		263,271
Operating expenses	54,010		266,857		18,673		339,540
Total benefits and expenses	255,482		318,796		28,533		602,811
Income (loss) before income taxes	62,081		40,647		10,781		113,509
Income tax expense (benefit)	21,247		14,486		3,977		39,710
Net income (loss)	$	40,834	$	26,161	$	6,804	$	73,799

	Three Months Ended June 30, 2015
	Individual		Empower
	Markets		Retirement			Other			Total
Revenue:
Premium income	$	51,253	$	16		$	23,448		$	74,717
Fee income	24,967		211,532			1,002			237,501
Other revenue	—		1,820			—			1,820
Net investment income	155,658		51,079			13,432			220,169
Realized investment gains (losses), net	3,552		12,211			96			15,859
Total revenues	235,430		276,658			37,978			550,066
Benefits and expenses:
Policyholder benefits	198,590		47,748			25,981			272,319
Operating expenses	31,424		240,176			16,841			288,441
Total benefits and expenses	230,014		287,924			42,822			560,760
Income (loss) before income taxes	5,416		(11,266		)	(4,844		)	(10,694		)
Income tax expense (benefit)	1,501		(3,614		)	(1,566		)	(3,679		)
Net income (loss)	$	3,915	$	(7,652	)	$	(3,278	)	$	(7,015	)

	Six Months Ended June 30, 2016
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	184,339	$	707	$	46,699		$	231,745
Fee income	48,269		412,336		2,824			463,429
Other revenue	—		6,519		—			6,519
Net investment income	433,886		227,589		26,065			687,540
Realized investment gains (losses), net	26,577		46,713		(7		)	73,283
Total revenues	693,071		693,864		75,581			1,462,516
Benefits and expenses:
Policyholder benefits	468,969		101,856		29,190			600,015
Operating expenses	91,231		498,500		36,601			626,332
Total benefits and expenses	560,200		600,356		65,791			1,226,347
Income (loss) before income taxes	132,871		93,508		9,790			236,169
Income tax expense (benefit)	45,081		15,137		3,530			63,748
Net income (loss)	$	87,790	$	78,371	$	6,260		$	172,421

	Six Months Ended June 30, 2015
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	176,215	$	16	$	44,189		$	220,420
Fee income	46,469		414,353		1,956			462,778
Other revenue	—		3,640		—			3,640
Net investment income	373,311		178,809		26,905			579,025
Realized investment gains (losses), net	11,952		22,011		96			34,059
Total revenues	607,947		618,829		73,146			1,299,922
Benefits and expenses:
Policyholder benefits	454,914		96,792		48,284			599,990
Operating expenses	67,363		461,206		31,547			560,116
Total benefits and expenses	522,277		557,998		79,831			1,160,106
Income (loss) before income taxes	85,670		60,831		(6,685		)	139,816
Income tax expense (benefit)	29,724		20,766		(2,272		)	48,218
Net income (loss)	$	55,946	$	40,065	$	(4,413	)	$	91,598