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Description of the Company (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
May 26, 2010
Goodwill, Impairment Loss $ 3,900,000us-gaap_GoodwillImpairmentLoss    
Common stock, par value (in dollars per share) $ 0.00001us-gaap_CommonStockParOrStatedValuePerShare $ 0.00001us-gaap_CommonStockParOrStatedValuePerShare  
Collateral and Filed [Domain]      
Business Combination, Consideration Transferred 29,100,000us-gaap_BusinessCombinationConsiderationTransferred1
/ dei_LegalEntityAxis
= clgx_CollateralandFiledDomain
   
FAFC [Member]      
Common stock, par value (in dollars per share)     $ 1.00us-gaap_CommonStockParOrStatedValuePerShare
/ dei_LegalEntityAxis
= clgx_FafcMember
Earn-out [Member] | Collateral and Filed [Domain]      
Business Combination, Consideration Transferred 20,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_ContingentConsiderationByTypeAxis
= clgx_EarnoutMember
/ dei_LegalEntityAxis
= clgx_CollateralandFiledDomain
   
Technology and Processing Solutions [Member]      
Goodwill, Impairment Loss $ 3,900,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
$ 42,216,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember