Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Net premiums earned	$ 1,263.4	$ 1,231.0
Title, escrow, and other fees	94.6	99.3
Total premiums and fees	1,358.1	1,330.4
Net investment income	112.1	105.8
Other income	30.4	30.6
Total operating revenues	1,500.6	1,466.8
Investment gains (losses):
Realized from actual transactions	12.3	15.5
Unrealized from changes in fair value of equity securities	355.6	(152.0)
Total realized and unrealized investment gains (losses)	368.0	(136.4)
Total revenues	1,868.6	1,330.4
Benefits, Claims and Expenses:
Benefits, claims and settlement expenses	598.5	590.1
Dividends to policyholders	7.5	3.8
Underwriting, acquisition, and other expenses	733.4	728.0
Interest and other charges	10.6	14.4
Total expenses	1,350.1	1,336.4
Income (loss) before income taxes (credits)	518.5	(6.0)
Income Taxes (Credits):
Current	43.7	26.0
Deferred	62.5	(36.1)
Total	106.2	(10.1)
Net Income (Loss)	$ 412.2	$ 4.0
Net Income (Loss) Per Share:
Net income (loss) per share: Basic (in dollars per share)	$ 1.38	$ 0.01
Net income (loss) per share: Diluted (in dollars per share)	$ 1.37	$ 0.01
Average shares outstanding: Basic (in shares)	299,020,956	278,116,902
Average shares outstanding: Diluted (in shares)	300,172,853	279,528,034