Document and Entity Information (USD $)	9 Months Ended
	Sep. 30, 2011	Nov. 01, 2011	Jun. 30, 2010
Entity Information [Line Items]
Entity Registrant Name	CORELOGIC, INC.
Entity Central Index Key	0000036047
Current Fiscal Year End Date	--12-31
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Periods Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 2,052,290,343
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		106,487,261