Guarantor Subsidiaries (Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash and cash equivalents	$ 148,858	$ 259,266	$ 426,212	$ 459,519
Other current assets	441,066	443,647
Accounts receivable	255,148	213,339
Total current assets	589,924	702,913
Property and equipment, net	186,617	214,237
Goodwill, net	1,504,232	1,472,206	1,289,888
Other intangible assets, net	171,584	164,365
Capitalized data and database cost, net	322,289	304,006
Investment in affiliates, net	94,227	113,809
Deferred income tax assets, long-term	0	0
Restricted cash	22,117	22,044
Investment in subsidiaries	0	0
Intercompany receivable	0	0
Other assets	138,837	125,120
Total assets	3,029,827	3,118,700
Current liabilities	517,091	500,659
Long-term debt, net of current	792,324	846,027
Deferred revenue, net of current	309,418	338,799
Deferred income tax liabilities, long term	71,361	27,012
Intercompany payable	0	0
Other current liabilities		500,659
Other liabilities	168,687	161,382
Total CoreLogic stockholders' equity	1,169,301	1,242,521
Noncontrolling interests	1,645	2,300
Total liabilities and equity	3,029,827	3,118,700
Parent [Member]
Cash and cash equivalents	111,305	229,871	355,974	165,012
Other current assets	59,977	54,458
Property and equipment, net	14,921	8,500
Goodwill, net	0	0
Other intangible assets, net	0	0
Capitalized data and database cost, net	0	0
Investment in affiliates, net	0	0
Deferred income tax assets, long-term	59,523	53,724
Restricted cash	18,299	18,298
Investment in subsidiaries	1,853,561	1,638,736
Intercompany receivable	65,885	170,937
Other assets	107,976	92,909
Total assets	2,291,447	2,267,433
Current liabilities	82,668
Long-term debt, net of current	783,470	784,570
Deferred revenue, net of current	0	0
Deferred income tax liabilities, long term	0	0
Intercompany payable	125,587	0
Other current liabilities		107,845
Other liabilities	130,421	132,497
Total CoreLogic stockholders' equity	1,169,301	1,242,521
Noncontrolling interests	0	0
Total liabilities and equity	2,291,447	2,267,433
Guarantor Subsidiaries [Member]
Cash and cash equivalents	1,812	9,106	23,013	282,290
Other current assets	364,178	376,926
Property and equipment, net	139,831	175,129
Goodwill, net	1,323,700	1,288,328
Other intangible assets, net	123,011	107,994
Capitalized data and database cost, net	238,598	218,534
Investment in affiliates, net	88,647	108,323
Deferred income tax assets, long-term	0	0
Restricted cash	305	122
Investment in subsidiaries	0	0
Intercompany receivable	125,587	0
Other assets	28,420	30,153
Total assets	2,434,089	2,314,615
Current liabilities	406,890
Long-term debt, net of current	8,854	10,412
Deferred revenue, net of current	309,418	338,799
Deferred income tax liabilities, long term	111,051	62,353
Intercompany payable	0	157,039
Other current liabilities		369,631
Other liabilities	33,011	24,335
Total CoreLogic stockholders' equity	1,564,865	1,352,046
Noncontrolling interests	0	0
Total liabilities and equity	2,434,089	2,314,615
Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	35,741	20,289	47,225	12,217
Other current assets	17,352	15,855
Property and equipment, net	31,865	30,608
Goodwill, net	180,532	183,878
Other intangible assets, net	48,573	56,371
Capitalized data and database cost, net	83,691	85,472
Investment in affiliates, net	5,580	5,486
Deferred income tax assets, long-term	0	0
Restricted cash	3,513	3,624
Investment in subsidiaries	0	0
Intercompany receivable	0	0
Other assets	2,441	2,058
Total assets	409,288	403,641
Current liabilities	27,974
Long-term debt, net of current	0	51,045
Deferred revenue, net of current	0	0
Deferred income tax liabilities, long term	19,833	18,383
Intercompany payable	65,885	13,898
Other current liabilities		26,775
Other liabilities	5,255	4,550
Total CoreLogic stockholders' equity	288,696	286,690
Noncontrolling interests	1,645	2,300
Total liabilities and equity	409,288	403,641
Consolidating/Eliminating Adjustments [Member]
Cash and cash equivalents	0	0	0	0
Other current assets	(441)	(3,592)
Property and equipment, net	0	0
Goodwill, net	0	0
Other intangible assets, net		0
Capitalized data and database cost, net	0	0
Investment in affiliates, net	0	0
Deferred income tax assets, long-term	(59,523)	(53,724)
Restricted cash	0	0
Investment in subsidiaries	(1,853,561)	(1,638,736)
Intercompany receivable	(191,472)	(170,937)
Other assets	0	0
Total assets	(2,104,997)	(1,866,989)
Current liabilities	(441)
Long-term debt, net of current	0	0
Deferred revenue, net of current	0	0
Deferred income tax liabilities, long term	(59,523)	(53,724)
Intercompany payable	(191,472)	(170,937)
Other current liabilities		(3,592)
Other liabilities	0	0
Total CoreLogic stockholders' equity	(1,853,561)	(1,638,736)
Noncontrolling interests	0	0
Total liabilities and equity	$ (2,104,997)	$ (1,866,989)