ShareBased Compensation Plans Other (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended							0 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Employee Stock [Member]	Dec. 31, 2010 Employee Stock [Member]	Dec. 31, 2009 Employee Stock [Member]	May 19, 2011 Corelogic 2006 Incentive Plan [Member]	Nov. 18, 2009 FADV [Member]	Dec. 31, 2009 FADV [Member]	Dec. 31, 2009 Options And Restricted Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant							18,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date				85.00%
Stock Issued During Period, Shares, Acquisitions								9,500,000
Share-based Compensation Expense	$ 11,649	$ 13,969	$ 25,637	$ 299	$ 423	$ 949				$ 9,100
Shares, Issued										400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	684,000								1,800,000