CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows - operating activities
Net income (loss)	$ 30.3	$ (6.2)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net investment gains (losses)	3.7	21.3
Depreciation and intangible asset amortization	13.0	12.9
Share-based compensation expense	5.1	4.5
Loss (gain) from equity method investments, net of dividends or distributions	14.7	11.5
Changes in:
Insurance liabilities	(1.5)	126.8
Amounts due under reinsurance agreements	23.9	14.3
Income tax liabilities	13.9	(15.7)
Other operating assets and liabilities	12.9	(17.3)
Contributions to defined benefits plan	(0.2)	0.0
Other, net	(1.1)	1.8
Net cash provided by operating activities	114.7	153.9
Cash flows - investing activities
Fixed maturity securities purchases	(602.2)	(313.7)
Fixed maturity securities sales	193.0	206.2
Fixed maturity securities maturities, paydowns, calls and redemptions	248.1	133.9
Equity securities purchases	(1.5)	(1.7)
Equity securities sales and repayments	0.0	9.8
Limited partnership interests purchases	(37.1)	(110.2)
Limited partnership interests sales	49.4	8.3
Change in short-term and other investments, net	63.2	22.8
Other-net	(0.1)	0.0
Net cash used in investing activities	(87.2)	(44.6)
Cash flows - financing activities
Dividends paid to shareholders	(27.8)	(27.0)
Treasury stock acquired	(4.5)	(5.5)
Proceeds from exercise of stock options	1.1	0.0
Withholding tax payments on RSUs tendered	(1.7)	(1.8)
Annuity contracts: variable, fixed and FHLB funding agreements:
Deposits	409.9	418.4
Benefits, withdrawals and net transfers to Separate Account variable annuity assets	(288.2)	(309.6)
Repayment of FHLB funding agreements	(155.0)	(85.0)
Life policy accounts deposits, withdrawals, and surrenders	5.9	4.3
Change in deposit asset on reinsurance	(30.5)	(52.7)
Net increase (decrease) in reverse repurchase agreements	45.0	(70.0)
Change in book overdrafts	3.2	(0.1)
Net cash used in financing activities	(42.6)	(129.0)
Net decrease in cash	(15.1)	(19.7)
Cash at beginning of period	29.7	42.8
Cash at end of period	$ 14.6	$ 23.1