Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	Feb. 24, 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 Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Periods Status	Yes
Entity Common Stock, Shares Outstanding		106,543,496
Entity Public Float			$ 1,773,549,000