Segment Information (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 state	Mar. 31, 2011 Title Insurance And Services [Member]	Mar. 31, 2011 Specialty Insurance [Member]	Mar. 31, 2011 Corporate [Member]
Segment Reporting Information [Line Items]
Number of states company issues title insurance policies	49
Number of states company licensed to issue property and casualty insurance policies	50
Number of states company issues property and casualty policies	43
Number of states company issues home warranty contracts	39
Increase (decrease) in income before income taxes due to change in allocation within reportable segments		$ 2.9	$ 0.2	$ (3.1)