Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Net premiums earned	$ 1,201.3	$ 1,150.8
Title, escrow, and other fees	99.7	94.8
Total premiums and fees	1,301.0	1,245.7
Net investment income	101.2	96.3
Other income	27.6	27.3
Total operating revenues	1,429.9	1,369.3
Realized investment gains (losses):
From sales	14.8	44.1
From impairments	0.0	0.0
Total realized investment gains (losses)	14.8	44.1
Total revenues	1,444.8	1,413.5
Benefits, Claims and Expenses:
Benefits, claims and settlement expenses	559.2	569.8
Dividends to policyholders	4.1	4.2
Underwriting, acquisition, and other expenses	700.2	646.3
Interest and other charges	16.4	10.7
Total expenses	1,280.1	1,231.1
Income before income taxes (credits)	164.7	182.3
Income Taxes (Credits):
Current	51.9	57.1
Deferred	(0.3)	2.2
Total	51.6	59.3
Net Income	$ 113.1	$ 122.9
Net Income Per Share:
Net income (loss) per share: Basic (in dollars per share)	$ 0.43	$ 0.48
Net income (loss) per share: Diluted (in dollars per share)	$ 0.39	$ 0.43
Average shares outstanding: Basic (in shares)	260,784,905	258,657,939
Average shares outstanding: Diluted (in shares)	298,239,349	295,543,808
Dividends Per Common Share:
Cash	$ 0.1900	$ 0.1875