Document and Entity Information (USD $)	3 Months Ended
	Mar. 31, 2012	Apr. 23, 2012	Jun. 30, 2011
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			$ 1,773,549,000
Document Type	10-Q
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		106,810,407