Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Summary of financial information related to segments

The following tables summarize segment financial information:

	Three Months Ended March 31, 2016
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	133,286	$	346	$	21,295		$	154,927
Fee income	22,724		200,923		1,420			225,067
Other revenue	—		3,149		—			3,149
Net investment income	207,693		110,534		13,558			331,785
Realized investment gains (losses), net	11,806		19,471		(7		)	31,270
Total revenues	375,509		334,423		36,266			746,198
Benefits and expenses:
Policyholder benefits	267,497		49,917		19,329			336,743
Operating expenses	37,223		231,640		17,928			286,791
Total benefits and expenses	304,720		281,557		37,257			623,534
Income (loss) before income taxes	70,789		52,866		(991		)	122,664
Income tax expense (benefit)	23,834		651		(447		)	24,038
Net income (loss)	$	46,955	$	52,215	$	(544	)	$	98,626

	Three Months Ended March 31, 2015
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	124,962	$	—	$	20,741		$	145,703
Fee income	21,502		202,821		954			225,277
Other revenue	—		1,820		—			1,820
Net investment income	217,653		127,730		13,473			358,856
Realized investment gains (losses), net	8,400		9,800		—			18,200
Total revenues	372,517		342,171		35,168			749,856
Benefits and expenses:
Policyholder benefits	256,323		49,045		22,303			327,671
Operating expenses	35,941		221,030		14,706			271,677
Total benefits and expenses	292,264		270,075		37,009			599,348
Income (loss) before income taxes	80,253		72,096		(1,841		)	150,508
Income tax expense (benefit)	28,222		24,380		(706		)	51,896
Net income (loss)	$	52,031	$	47,716	$	(1,135	)	$	98,612