Corelogic Information Systems [Abstract]

Name:	clgx_CorelogicInformationSystemsAbstract
Namespace Prefix:	clgx
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Noncontrolling Interest Change in Ownership Tax Portion

+ Details

Name:	clgx_NoncontrollingInterestChangeInOwnershipTaxPortion
Namespace Prefix:	clgx
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Payments To Acquire Interest In Redeemable Noncontrolling Interest

+ Details

Name:	clgx_PaymentsToAcquireInterestInRedeemableNoncontrollingInterest
Namespace Prefix:	clgx
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Redeemable Noncontrolling Interest Owenership Percentage Agreement

+ Details

Name:	clgx_RedeemableNoncontrollingInterestOwenershipPercentageAgreement
Namespace Prefix:	clgx
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Redeemable Noncontrolling Interests [Abstract]

+ Details

Name:	clgx_RedeemableNoncontrollingInterestsAbstract
Namespace Prefix:	clgx
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Remaining Payments To Acquire Redeemable Noncontrolling Interest

+ Details

Name:	clgx_RemainingPaymentsToAcquireRedeemableNoncontrollingInterest
Namespace Prefix:	clgx
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityPurchasePrice
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

+ Details

Name:	us-gaap_MinorityInterestChangeInRedemptionValue
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Redeemable Noncontrolling Interests (Details) (USD $)	3 Months Ended	9 Months Ended
Redeemable Noncontrolling Interests (Details) (USD $)	Mar. 31, 2011	Sep. 30, 2011	Sep. 30, 2010	Mar. 31, 2010	Dec. 31, 2010 Subsidiaries [Member]
Experian Information Solutions [Abstract]
Business Acquisition, Cost of Acquired Entity, Purchase Price					$ 313,800,000
Noncontrolling Interest, Change in Redemption Value	4,200,000	(3,800,000)	11,336,000
Noncontrolling Interest Change in Ownership Tax Portion	100,000
Corelogic Information Systems [Abstract]
Redeemable Noncontrolling Interest Owenership Percentage Agreement				18.00%
Noncontrolling Interest, Ownership Percentage by Parent				9.00%
Payments To Acquire Interest In Redeemable Noncontrolling Interest				72,000,000
Remaining Payments To Acquire Redeemable Noncontrolling Interest	$ 72,000,000