Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Earned Premiums	$ 1,356.1	$ 1,206.5	$ 3,894.6	$ 3,458.2
Net Investment Income	101.9	92.1	318.9	245.5
Change in Value of Alternative Energy Partnership Investments	(23.8)	0.0	(46.9)	0.0
Other Income (Loss)	12.3	0.9	20.8	92.7
Income (Loss) from Change in Fair Value of Equity and Convertible Securities	(0.6)	45.2	92.4	(1.0)
Net Realized Gains on Sales of Investments	10.1	10.0	43.1	38.2
Impairment Losses	(0.6)	(1.0)	(7.8)	(20.0)
Total Revenues	1,455.4	1,353.7	4,315.1	3,813.6
Expenses:
Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses	1,211.2	877.5	3,324.8	2,460.2
Insurance Expenses	311.3	276.9	909.0	821.2
Interest and Other Expenses	62.7	47.2	179.2	142.7
Total Expenses	1,585.2	1,201.6	4,413.0	3,424.1
Income (Loss) before Income Taxes	(129.8)	152.1	(97.9)	389.5
Income Tax Benefit (Expense)	54.5	(29.8)	83.2	(77.1)
Net Income (Loss)	$ (75.3)	$ 122.3	$ (14.7)	$ 312.4
Net Income (Loss) Per Unrestricted Share:
Basic (in dollars per share)	$ (1.18)	$ 1.87	$ (0.23)	$ 4.75
Diluted (in dollars per share)	$ (1.18)	$ 1.83	$ (0.23)	$ 4.67