CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Premiums and contract charges earned	$ 225.4	$ 235.3	$ 678.8	$ 697.0
Net investment income	103.7	93.7	308.4	256.4
Net investment (losses) gains	(6.5)	2.5	(10.6)	(12.8)
Other income	7.0	5.6	22.1	17.5
Total revenues	329.6	337.1	998.7	958.1
Benefits, losses and expenses
Benefits, claims and settlement expenses	164.8	151.4	446.2	433.1
Interest credited	51.9	51.1	153.7	153.3
Operating expenses	64.3	57.9	182.8	173.1
DAC unlocking and amortization expense	22.9	24.6	70.5	75.0
Intangible asset amortization expense	3.3	3.5	9.8	10.9
Interest expense	3.4	3.5	10.4	11.7
Total benefits, losses and expenses	310.6	292.0	873.4	857.1
Income before income taxes	19.0	45.1	125.3	101.0
Income tax expense	2.7	8.6	23.0	15.5
Net income	$ 16.3	$ 36.5	$ 102.3	$ 85.5
Net income per share
Basic (in usd per share)	$ 0.39	$ 0.87	$ 2.44	$ 2.04
Diluted (in usd per share)	$ 0.39	$ 0.87	$ 2.43	$ 2.03
Weighted average number of shares and equivalent shares
Basic (in shares)	42.0	41.9	42.0	41.9
Diluted (in shares)	42.2	42.1	42.2	42.0
Net income	$ 16.3	$ 36.5	$ 102.3	$ 85.5
Other comprehensive (loss) income, net of tax:
Change in net unrealized investment gains (losses) on fixed maturity securities	(25.3)	49.1	(59.4)	97.8
Change in net funded status of benefit plans	0.0	0.0	0.0	0.0
Other comprehensive (loss) income	(25.3)	49.1	(59.4)	97.8
Comprehensive (loss) income	$ (9.0)	$ 85.6	$ 42.9	$ 183.3