Guarantor Subsidiaries (Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 89,706	$ 104,677	$ 122,225	$ 134,419
Accounts receivable (less allowance for doubtful accounts of $12,062 and $12,930 as of March 31, 2014 and December 31, 2013, respectively)	226,495	214,344
Other current assets	185,379	181,604
Property and equipment, net	359,275	368,614
Goodwill, net	1,769,199	1,780,758
Other intangible assets, net	266,131	278,270
Capitalized data and database developement costs net	329,227	333,265
Investment in affiliates, net	101,715	103,598
Deferred income tax assets, long-term	0	0
Restricted cash	12,214	12,360
Investments in subsidiaries	0	0
Intercompany Receivable	0	0
Other assets	134,634	138,872
Total assets	3,473,975	3,516,362
Liabilities and Equity
Current liabilities	532,059	550,590
Long-term debt, net	1,278,881	1,319,211
Deferred revenue	394,580	389,308
Deferred income taxes, long term	64,426	63,979
Intercompany Payable	0	0
Other liabilities	159,059	161,084
Redeemable noncontrolling interests	16,783	18,023
Total Corelogic's stockholders' equity	1,028,187	1,014,167
Total liabilities and equity	3,473,975	3,516,362
Parent [Member]
Assets
Cash and cash equivalents	48,893	61,602	82,476	104,310
Accounts receivable (less allowance for doubtful accounts of $12,062 and $12,930 as of March 31, 2014 and December 31, 2013, respectively)	0	0
Other current assets	55,390	55,867
Property and equipment, net	16,381	17,261
Goodwill, net	0	0
Other intangible assets, net	276	290
Capitalized data and database developement costs net	0	0
Investment in affiliates, net	0	0
Deferred income tax assets, long-term	49,365	49,365
Restricted cash	11,035	11,035
Investments in subsidiaries	2,374,115	2,350,467
Intercompany Receivable	86,774	89,780
Other assets	103,579	105,262
Total assets	2,745,808	2,740,929
Liabilities and Equity
Current liabilities	109,298	123,196
Long-term debt, net	1,277,645	1,313,270
Deferred revenue	0	0
Deferred income taxes, long term	0	0
Intercompany Payable	199,282	158,939
Other liabilities	131,396	131,357
Redeemable noncontrolling interests	0	0
Total Corelogic's stockholders' equity	1,028,187	1,014,167
Total liabilities and equity	2,745,808	2,740,929
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	3,584	8,733	8,113	0
Accounts receivable (less allowance for doubtful accounts of $12,062 and $12,930 as of March 31, 2014 and December 31, 2013, respectively)	201,648	189,138
Other current assets	126,122	120,531
Property and equipment, net	319,236	325,638
Goodwill, net	1,612,389	1,612,388
Other intangible assets, net	233,924	242,170
Capitalized data and database developement costs net	255,455	254,236
Investment in affiliates, net	101,422	103,598
Deferred income tax assets, long-term	0	0
Restricted cash	0	0
Investments in subsidiaries	0	0
Intercompany Receivable	199,282	158,939
Other assets	29,708	31,925
Total assets	3,082,770	3,047,296
Liabilities and Equity
Current liabilities	385,756	389,170
Long-term debt, net	1,236	5,941
Deferred revenue	394,578	389,302
Deferred income taxes, long term	91,644	91,197
Intercompany Payable	22,325	22,325
Other liabilities	26,191	27,930
Redeemable noncontrolling interests	0	0
Total Corelogic's stockholders' equity	2,161,040	2,121,431
Total liabilities and equity	3,082,770	3,047,296
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	37,229	34,342	31,636	30,109
Accounts receivable (less allowance for doubtful accounts of $12,062 and $12,930 as of March 31, 2014 and December 31, 2013, respectively)	24,847	25,206
Other current assets	4,240	5,206
Property and equipment, net	23,658	25,715
Goodwill, net	156,810	168,370
Other intangible assets, net	31,931	35,810
Capitalized data and database developement costs net	73,772	79,029
Investment in affiliates, net	293	0
Deferred income tax assets, long-term	0	0
Restricted cash	1,179	1,325
Investments in subsidiaries	0	0
Intercompany Receivable	0	0
Other assets	1,347	1,685
Total assets	355,306	376,688
Liabilities and Equity
Current liabilities	37,378	38,224
Long-term debt, net	0	0
Deferred revenue	2	6
Deferred income taxes, long term	22,147	22,147
Intercompany Payable	64,449	67,455
Other liabilities	1,472	1,797
Redeemable noncontrolling interests	16,783	18,023
Total Corelogic's stockholders' equity	213,075	229,036
Total liabilities and equity	355,306	376,688
Consolidation, Eliminations [Member]
Assets
Cash and cash equivalents	0	0	0	0
Accounts receivable (less allowance for doubtful accounts of $12,062 and $12,930 as of March 31, 2014 and December 31, 2013, respectively)	0	0
Other current assets	(373)	0
Property and equipment, net	0	0
Goodwill, net	0	0
Other intangible assets, net		0
Capitalized data and database developement costs net	0	0
Investment in affiliates, net	0	0
Deferred income tax assets, long-term	(49,365)	(49,365)
Restricted cash	0	0
Investments in subsidiaries	(2,374,115)	(2,350,467)
Intercompany Receivable	(286,056)	(248,719)
Other assets	0	0
Total assets	(2,709,909)	(2,648,551)
Liabilities and Equity
Current liabilities	(373)	0
Long-term debt, net	0	0
Deferred revenue	0	0
Deferred income taxes, long term	(49,365)	(49,365)
Intercompany Payable	(286,056)	(248,719)
Other liabilities	0	0
Redeemable noncontrolling interests	0	0
Total Corelogic's stockholders' equity	(2,374,115)	(2,350,467)
Total liabilities and equity	(2,709,909)	(2,648,551)
Total [Member]
Assets
Cash and cash equivalents	$ 89,706	$ 104,677	$ 122,225	$ 134,419