Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Net premiums earned	$ 1,376.7	$ 1,263.4
Title, escrow, and other fees	120.1	94.6
Total premiums and fees	1,496.8	1,358.1
Net investment income	114.1	112.1
Other income	34.6	30.4
Total operating revenues	1,645.7	1,500.6
Investment gains (losses):
Realized from actual transactions and impairments	18.5	12.3
Realized Investment Gains Losses From Impairment	0.0	0.0
Unrealized from changes in fair value of equity securities	(962.7)	355.6
Total realized and unrealized investment gains (losses)	(944.1)	368.0
Total revenues	701.5	1,868.6
Benefits, Claims and Expenses:
Benefits, claims and settlement expenses	619.7	598.5
Dividends to policyholders	2.9	7.5
Underwriting, acquisition, and other expenses	836.9	733.4
Interest and other charges	11.9	10.6
Total expenses	1,471.5	1,350.1
Income (loss) before income taxes (credits)	(769.9)	518.5
Income Taxes (Credits):
Current	40.0	43.7
Deferred	(205.2)	62.5
Total	(165.1)	106.2
Net Income (Loss)	$ (604.8)	$ 412.2
Net Income (Loss) Per Share:
Net income (loss) per share: Basic (in dollars per share)	$ (2.01)	$ 1.38
Net income (loss) per share: Diluted (in dollars per share)	$ (2.01)	$ 1.37
Average shares outstanding: Basic (in shares)	300,280,398	299,020,956
Average shares outstanding: Diluted (in shares)	300,280,398	300,172,853