CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues
Net premiums and contract charges earned	$ 266.0	$ 257.4	$ 782.6	$ 768.6
Net investment income	118.9	97.6	327.8	300.7
Net investment losses	(8.4)	(12.8)	(29.7)	(43.8)
Other income	2.2	0.4	8.3	9.7
Total revenues	378.7	342.6	1,089.0	1,035.2
Benefits, losses and expenses
Benefits, claims and settlement expenses	199.2	167.1	587.6	545.7
Interest credited	52.7	44.8	152.1	125.9
Operating expenses	75.7	75.6	235.6	229.4
DAC amortization expense	26.3	22.2	75.4	65.7
Intangible asset amortization expense	3.7	4.2	11.1	12.6
Interest expense	7.5	5.3	21.1	13.5
Total benefits, losses and expenses	365.1	319.2	1,082.9	992.8
Income before income taxes	13.6	23.4	6.1	42.4
Income tax expense	1.9	3.0	0.6	5.9
Net income	$ 11.7	$ 20.4	$ 5.5	$ 36.5
Net income per share
Basic (in usd per share)	$ 0.28	$ 0.49	$ 0.13	$ 0.87
Diluted (in usd per share)	$ 0.28	$ 0.49	$ 0.13	$ 0.87
Weighted average number of shares and equivalent shares
Basic (in shares)	41.3	41.4	41.3	41.7
Diluted (in shares)	41.4	41.6	41.4	41.9
Statements of Comprehensive Income (Loss)
Net income (loss)	$ 11.7	$ 20.4	$ 5.5	$ 36.5
Other comprehensive loss, net of tax:
Change in net unrealized investment losses on fixed maturity securities	(141.0)	(215.0)	(85.1)	(843.9)
Change in net reserve remeasurements attributable to discount rates	90.7	110.7	74.6	460.7
Change in net funded status of benefit plans	0.0	0.0	0.0	0.0
Other comprehensive loss	(50.3)	(104.3)	(10.5)	(383.2)
Comprehensive income (loss)	$ (38.6)	$ (83.9)	$ (5.0)	$ (346.7)