Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Earned Premiums	$ 1,074.8	$ 609.8
Net Investment Income	82.7	79.2
Other Income	1.9	1.2
Income from Change in Fair Value of Equity and Convertible Securities	64.4	0.7
Net Realized Gains on Sales of Investments	16.1	2.6
Other-than-temporary Impairment Losses:
Total Other-than-temporary Impairment Losses	(3.5)	(0.5)
Portion of Losses Recognized in Other Comprehensive Income	(0.1)	0.0
Net Impairment Losses Recognized in Earnings	(3.6)	(0.5)
Total Revenues	1,236.3	693.0
Expenses:
Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses	765.4	436.9
Insurance Expenses	234.8	160.1
Interest and Other Expenses	41.4	29.0
Total Expenses	1,041.6	626.0
Income from Continuing Operations before Income Taxes	194.7	67.0
Income Tax Expense	(39.4)	(13.4)
Income from Continuing Operations	155.3	53.6
Income from Discontinued Operations	0.0	0.2
Net Income	$ 155.3	$ 53.8
Income from Continuing Operations Per Unrestricted Share:
Basic (in dollars per share)	$ 2.38	$ 1.03
Diluted (in dollars per share)	2.35	1.02
Net Income Per Unrestricted Share:
Basic (in dollars per share)	2.38	1.03
Diluted (in dollars per share)	$ 2.35	$ 1.02