CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows - operating activities
Net income	$ 142.8	$ 133.3	$ 184.4
Adjustments to reconcile net income to net cash provided by operating activities:
Net investment (gains) losses	11.0	2.3	(153.3)
Depreciation and intangible asset amortization	18.4	23.4	15.6
Share-based compensation expense	8.4	6.7	7.3
Other expense - goodwill and intangible asset impairments	0.0	10.0	28.0
Income from equity method investments, net of dividends or distributions	(41.5)	(2.7)	(9.1)
Changes in:
Accrued investment income	0.8	(1.6)	46.9
Insurance liabilities	46.9	69.9	(96.8)
Reinsurance recoverables	(1.5)	1.6	22.0
Income tax liabilities	8.5	8.3	28.8
Other operating assets and liabilities	8.1	0.6	47.4
Other	3.0	8.0	6.4
Net cash provided by operating activities	204.9	259.8	127.6
Fixed maturity securities
Purchases	(1,459.0)	(1,439.7)	(1,058.7)
Sales	578.2	472.9	805.9
Maturities, paydowns, calls and redemptions	873.3	640.3	799.5
Equity securities
Purchases	(46.1)	(37.4)	(15.6)
Sales and repayments	4.7	12.7	33.5
Limited partnership interests
Purchases	(320.6)	(98.6)	(129.4)
Sales	86.5	30.9	91.5
Change in short-term and other investments, net	(19.0)	12.1	(49.3)
Acquisition of businesses, net of cash acquired	0.0	0.0	(421.5)
Net cash (used in) provided by investing activities	(302.0)	(406.8)	55.9
Cash flows - financing activities
Dividends paid to shareholders	(51.4)	(49.6)	(47.3)
Principal borrowings on Bank Credit Facility	114.0	0.0	135.0
FHLB borrowings	5.0	4.0	0.0
Principal repayment on FHLB borrowings	(54.0)	0.0	0.0
Acquisition of treasury stock	(5.3)	(2.2)	0.0
Proceeds from exercise of stock options	0.3	2.4	1.7
Withholding tax payments on RSUs tendered	(2.0)	(2.3)	(3.7)
Annuity contracts: variable, fixed and FHLB funding agreements
Deposits	1,060.4	578.9	637.5
Benefits, withdrawals and net transfers to Separate Account (variable annuity) assets	(462.7)	(378.6)	(419.0)
Principal repayment on FHLB funding agreements	(362.0)	0.0	(305.0)
Life policy accounts
Deposits	8.9	9.0	9.4
Withdrawals and surrenders	(3.8)	(3.9)	(3.5)
Change in deposit asset on reinsurance	(39.2)	(21.2)	(150.4)
Change in book overdrafts	0.3	7.3	(24.6)
Net cash provided by (used in) financing activities	208.5	143.8	(169.9)
Net increase (decrease) in cash	111.4	(3.2)	13.6
Cash at beginning of year	22.3	25.5	11.9
Cash at end of year	$ 133.7	$ 22.3	$ 25.5