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Segment Financial Information (Table) (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Statement [Abstract]                      
Operating revenue $ 345,512,000us-gaap_SalesRevenueServicesNet $ 367,454,000us-gaap_SalesRevenueServicesNet $ 365,970,000us-gaap_SalesRevenueServicesNet $ 326,104,000us-gaap_SalesRevenueServicesNet $ 328,522,000us-gaap_SalesRevenueServicesNet $ 356,581,000us-gaap_SalesRevenueServicesNet $ 368,437,000us-gaap_SalesRevenueServicesNet $ 350,861,000us-gaap_SalesRevenueServicesNet $ 1,405,040,000us-gaap_SalesRevenueServicesNet $ 1,404,401,000us-gaap_SalesRevenueServicesNet $ 1,333,479,000us-gaap_SalesRevenueServicesNet
Depreciation and amortization                 138,394,000us-gaap_DepreciationAndAmortization 126,332,000us-gaap_DepreciationAndAmortization 117,108,000us-gaap_DepreciationAndAmortization
Operating income/(loss) 36,158,000us-gaap_OperatingIncomeLoss 77,755,000us-gaap_OperatingIncomeLoss 41,020,000us-gaap_OperatingIncomeLoss 14,825,000us-gaap_OperatingIncomeLoss (19,264,000)us-gaap_OperatingIncomeLoss 61,361,000us-gaap_OperatingIncomeLoss 52,980,000us-gaap_OperatingIncomeLoss 47,065,000us-gaap_OperatingIncomeLoss 169,758,000us-gaap_OperatingIncomeLoss 142,142,000us-gaap_OperatingIncomeLoss 170,402,000us-gaap_OperatingIncomeLoss
Equity in earnings/(loss) of affiliates, net of tax 3,831,000us-gaap_IncomeLossFromEquityMethodInvestments 4,032,000us-gaap_IncomeLossFromEquityMethodInvestments 3,875,000us-gaap_IncomeLossFromEquityMethodInvestments 2,382,000us-gaap_IncomeLossFromEquityMethodInvestments 3,510,000us-gaap_IncomeLossFromEquityMethodInvestments 5,716,000us-gaap_IncomeLossFromEquityMethodInvestments 9,347,000us-gaap_IncomeLossFromEquityMethodInvestments 8,788,000us-gaap_IncomeLossFromEquityMethodInvestments 14,120,000us-gaap_IncomeLossFromEquityMethodInvestments 27,361,000us-gaap_IncomeLossFromEquityMethodInvestments 35,983,000us-gaap_IncomeLossFromEquityMethodInvestments
Net income/(loss) from continuing operations                 91,008,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 100,260,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest 95,420,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
Capital expenditures                 87,154,000clgx_ExpendituresForAdditionsToLongLivedAssets 106,586,000clgx_ExpendituresForAdditionsToLongLivedAssets 83,734,000clgx_ExpendituresForAdditionsToLongLivedAssets
Statement of Financial Position [Abstract]                      
Investment in affiliates, net 103,598,000us-gaap_EquityMethodInvestments       95,343,000us-gaap_EquityMethodInvestments       103,598,000us-gaap_EquityMethodInvestments 95,343,000us-gaap_EquityMethodInvestments  
Long-lived assets 3,015,737,000us-gaap_NoncurrentAssets       2,441,714,000us-gaap_NoncurrentAssets       3,015,737,000us-gaap_NoncurrentAssets 2,441,714,000us-gaap_NoncurrentAssets  
Total assets 3,516,362,000us-gaap_Assets       3,003,131,000us-gaap_Assets       3,516,362,000us-gaap_Assets 3,003,131,000us-gaap_Assets  
Segment Reporting Information, Assets (Excluding Discontinued Operations Assets) 3,512,095,000clgx_SegmentReportingInformationAssetsExcludingDiscontinuedOperationsAssets       2,964,205,000clgx_SegmentReportingInformationAssetsExcludingDiscontinuedOperationsAssets       3,512,095,000clgx_SegmentReportingInformationAssetsExcludingDiscontinuedOperationsAssets 2,964,205,000clgx_SegmentReportingInformationAssetsExcludingDiscontinuedOperationsAssets  
Domestic Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 1,263,951,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
1,302,483,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
1,242,181,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 2,705,307,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      2,120,828,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      2,705,307,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
2,120,828,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
 
Foreign Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 141,089,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
101,918,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
91,298,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 310,430,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      320,886,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      310,430,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
320,886,000us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
 
Data and Analytics [Member]                      
Income Statement [Abstract]                      
Operating revenue                 647,264,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
572,169,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
544,753,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
Depreciation and amortization                 98,313,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
74,186,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
69,567,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
Operating income/(loss)                 97,654,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
100,963,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
96,519,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
Equity in earnings/(loss) of affiliates, net of tax                 49,000us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
1,631,000us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
2,197,000us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
Net income/(loss) from continuing operations                 98,975,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
110,143,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
99,188,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
Capital expenditures                 56,383,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
54,085,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
54,147,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
Statement of Financial Position [Abstract]                      
Investment in affiliates, net 27,809,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
      9,460,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
      27,809,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
9,460,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
 
Long-lived assets 1,739,715,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
      1,176,994,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
      1,739,715,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
1,176,994,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
 
Total assets 1,886,478,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
      1,306,023,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
      1,886,478,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
1,306,023,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
 
Data and Analytics [Member] | Domestic Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 509,521,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
476,048,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
460,401,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 1,429,305,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      856,111,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      1,429,305,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
856,111,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
 
Data and Analytics [Member] | Foreign Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 137,743,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
96,121,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
84,352,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 310,410,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      320,883,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      310,410,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
320,883,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_DataAndAnalyticsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
 
Technology and Processing Solutions [Member]                      
Income Statement [Abstract]                      
Operating revenue                 767,567,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
843,887,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
800,890,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
Depreciation and amortization                 26,019,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
30,780,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
24,161,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
Operating income/(loss)                 139,168,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
137,225,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
189,700,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
Equity in earnings/(loss) of affiliates, net of tax                 22,900,000us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
41,638,000us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
55,570,000us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
Net income/(loss) from continuing operations                 167,726,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
179,622,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
245,686,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
Capital expenditures                 8,336,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
20,048,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
18,738,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
Statement of Financial Position [Abstract]                      
Investment in affiliates, net 68,547,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
      78,290,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
      68,547,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
78,290,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
 
Long-lived assets 1,161,873,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
      1,130,237,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
      1,161,873,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
1,130,237,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
 
Total assets 1,297,903,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
      1,257,195,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
      1,297,903,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
1,257,195,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
 
Technology and Processing Solutions [Member] | Domestic Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 764,251,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
838,721,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
794,584,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 1,161,853,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      1,130,234,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      1,161,853,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
1,130,234,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
 
Technology and Processing Solutions [Member] | Foreign Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 3,316,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
5,166,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
6,306,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 20,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      3,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      20,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
3,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= clgx_TechnologyandProcessingSolutionsMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
 
Corporate Segment [Member]                      
Income Statement [Abstract]                      
Operating revenue                 30,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
631,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
640,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
Depreciation and amortization                 14,062,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
21,366,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
23,515,000us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
Operating income/(loss)                 (67,064,000)us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
(96,046,000)us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
(115,952,000)us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
Equity in earnings/(loss) of affiliates, net of tax                 (8,829,000)us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
(15,908,000)us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
(21,784,000)us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
Net income/(loss) from continuing operations                 (163,728,000)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
(189,505,000)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
(249,589,000)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
Capital expenditures                 22,435,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
32,453,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
10,849,000clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
Statement of Financial Position [Abstract]                      
Investment in affiliates, net 7,242,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
      7,593,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
      7,242,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
7,593,000us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
 
Long-lived assets 4,888,730,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
      4,232,718,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
      4,888,730,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
4,232,718,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
 
Total assets 5,102,328,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
      4,499,268,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
      5,102,328,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
4,499,268,000us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
 
Corporate Segment [Member] | Domestic Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 0us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
0us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
0us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 4,142,791,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      3,486,778,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      4,142,791,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
3,486,778,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
 
Corporate Segment [Member] | Foreign Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 30,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
631,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
640,000us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets 745,939,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      745,940,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      745,939,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
745,940,000us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
 
Eliminations [Member]                      
Income Statement [Abstract]                      
Operating revenue                 (9,821,000)us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
(12,286,000)us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
(12,804,000)us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
Depreciation and amortization                 0us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
(135,000)us-gaap_DepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
Operating income/(loss)                 0us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
135,000us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
Equity in earnings/(loss) of affiliates, net of tax                 0us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0us-gaap_IncomeLossFromEquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
Net income/(loss) from continuing operations                 (11,965,000)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
135,000us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
Capital expenditures                 0clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0clgx_ExpendituresForAdditionsToLongLivedAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
Statement of Financial Position [Abstract]                      
Investment in affiliates, net 0us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
      0us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
      0us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
0us-gaap_EquityMethodInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
 
Long-lived assets (4,774,581,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
      (4,098,235,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
      (4,774,581,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
(4,098,235,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
 
Total assets (4,774,614,000)us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
      (4,098,281,000)us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
      (4,774,614,000)us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
(4,098,281,000)us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
 
Eliminations [Member] | Domestic Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 (9,821,000)us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
(12,286,000)us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
(12,804,000)us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets (4,028,642,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      (3,352,295,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
      (4,028,642,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
(3,352,295,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_DomesticCountryMember
 
Eliminations [Member] | Foreign Country [Member]                      
Income Statement [Abstract]                      
Operating revenue                 0us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
0us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
0us-gaap_SalesRevenueServicesNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
Statement of Financial Position [Abstract]                      
Long-lived assets $ (745,939,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      $ (745,940,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
      $ (745,939,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember
$ (745,940,000)us-gaap_NoncurrentAssets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_ForeignCountryMember