Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	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 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	true
Amendment Description	This Amended Report amends the Original Report to incorporate information required by Part III - Item 10, Item 11, Item 12, Item 13, and Item 14 of Form 10-K and revisions to Note 2, Note 18, Note 21, reclassifications in our Consolidated Balance Sheets and signature page on original filing.
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Periods Status	Yes
Entity Common Stock, Shares Outstanding		106,810,407
Entity Public Float			$ 1,773,549,000