CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows - operating activities
Net income (loss)	$ 38.2	$ 26.5
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net investment gains (losses)	3.3	(2.2)
Depreciation and intangible asset amortization	7.0	6.6
Share-based compensation expense	2.6	2.5
Loss (gain) from equity method investments, net of dividends or distributions	(0.8)	15.6
Changes in:
Insurance liabilities	31.1	(27.8)
Amounts due under reinsurance agreements	11.9	31.3
Income tax liabilities	5.2	17.6
Other operating assets and liabilities	36.3	10.8
Contributions to defined benefits plan	(0.2)	0.0
Other, net	6.2	(6.4)
Net cash provided by operating activities	140.8	74.5
Cash flows - investing activities
Fixed maturity securities purchases	(252.0)	(335.6)
Fixed maturity securities sales	77.8	88.0
Fixed maturity securities maturities, paydowns, calls and redemptions	161.3	119.3
Equity securities purchases	(0.4)	(1.1)
Equity securities sales and repayments	0.0	0.0
Limited partnership interests purchases	(12.6)	(19.2)
Limited partnership interests sales	9.2	23.1
Change in short-term and other investments, net	(22.2)	65.0
Other-net	3.8	1.0
Net cash used in investing activities	(35.1)	(59.5)
Cash flows - financing activities
Dividends paid to shareholders	(14.3)	(13.9)
Treasury stock acquired	(0.2)	0.0
Proceeds from exercise of stock options	0.0	1.1
Withholding tax payments on RSUs tendered	(2.0)	(1.6)
Annuity contracts: variable, fixed and FHLB funding agreements:
Deposits	403.3	185.9
Benefits, withdrawals and net transfers to Separate Account variable annuity assets	(162.0)	(149.3)
Repayment of FHLB funding agreements	(287.0)	(50.0)
Life policy accounts deposits, withdrawals, and surrenders	4.8	2.1
Change in deposit asset on reinsurance	(37.4)	(49.3)
Net increase (decrease) in reverse repurchase agreements	(12.0)	50.0
Change in book overdrafts	(6.7)	0.7
Net cash used in financing activities	(113.5)	(24.3)
Net decrease in cash	(7.8)	(9.3)
Cash at beginning of period	38.1	29.7
Cash at end of period	$ 30.3	$ 20.4