Guarantor Subsidiaries (Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 160,257	$ 104,677	$ 127,618	$ 134,419
Accounts receivable	239,938	214,344
Other current assets	165,437	181,604
Property and equipment, net	340,993	368,614
Goodwill, net	1,821,822	1,780,758
Other intangible assets, net	302,190	278,270
Capitalized data and database developement costs net	324,868	333,265
Investment in affiliates, net	100,556	103,598
Deferred income tax assets, long-term	0	0
Restricted cash	10,864	12,360
Investments in subsidiaries	0	0
Intercompany Receivable	0	0
Other assets	135,645	138,872
Total assets	3,602,570	3,516,362
Liabilities and Equity
Current liabilities	582,329	550,590
Long-term debt, net	1,350,898	1,319,211
Deferred revenue	436,573	389,308
Deferred income taxes, long term	60,503	63,979
Intercompany Payable	0	0
Other liabilities	163,265	161,084
Redeemable noncontrolling interests	19,491	18,023
Total Corelogic's stockholders' equity	989,511	1,014,167
Total liabilities and equity	3,602,570	3,516,362
Parent [Member]
Assets
Cash and cash equivalents	75,319	61,602	90,034	104,310
Accounts receivable	0	0
Other current assets	50,670	55,867
Property and equipment, net	16,027	17,261
Goodwill, net	0	0
Other intangible assets, net	248	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	9,776	11,035
Investments in subsidiaries	2,462,393	2,350,467
Intercompany Receivable	124,791	89,780
Other assets	103,809	105,262
Total assets	2,892,398	2,740,929
Liabilities and Equity
Current liabilities	136,152	123,196
Long-term debt, net	1,349,520	1,313,270
Deferred revenue	0	0
Deferred income taxes, long term	0	0
Intercompany Payable	283,539	158,939
Other liabilities	133,676	131,357
Redeemable noncontrolling interests	0	0
Total Corelogic's stockholders' equity	989,511	1,014,167
Total liabilities and equity	2,892,398	2,740,929
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	6,194	8,733	7,067	0
Accounts receivable	217,698	189,138
Other current assets	113,512	120,531
Property and equipment, net	303,376	325,638
Goodwill, net	1,676,954	1,612,388
Other intangible assets, net	275,531	242,170
Capitalized data and database developement costs net	257,923	254,236
Investment in affiliates, net	99,178	103,598
Deferred income tax assets, long-term	0	0
Restricted cash	0	0
Investments in subsidiaries	0	0
Intercompany Receivable	283,538	158,939
Other assets	30,300	31,925
Total assets	3,264,204	3,047,296
Liabilities and Equity
Current liabilities	410,289	389,170
Long-term debt, net	1,378	5,941
Deferred revenue	436,399	389,302
Deferred income taxes, long term	95,381	91,197
Intercompany Payable	22,325	22,325
Other liabilities	28,139	27,930
Redeemable noncontrolling interests	0	0
Total Corelogic's stockholders' equity	2,270,293	2,121,431
Total liabilities and equity	3,264,204	3,047,296
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	78,744	34,342	30,517	30,109
Accounts receivable	22,240	25,206
Other current assets	4,588	5,206
Property and equipment, net	21,590	25,715
Goodwill, net	144,868	168,370
Other intangible assets, net	26,411	35,810
Capitalized data and database developement costs net	66,945	79,029
Investment in affiliates, net	1,378	0
Deferred income tax assets, long-term	0	0
Restricted cash	1,088	1,325
Investments in subsidiaries	0	0
Intercompany Receivable	0	0
Other assets	1,536	1,685
Total assets	369,388	376,688
Liabilities and Equity
Current liabilities	39,221	38,224
Long-term debt, net	0	0
Deferred revenue	174	6
Deferred income taxes, long term	14,487	22,147
Intercompany Payable	102,465	67,455
Other liabilities	1,450	1,797
Redeemable noncontrolling interests	19,491	18,023
Total Corelogic's stockholders' equity	192,100	229,036
Total liabilities and equity	369,388	376,688
Consolidation, Eliminations [Member]
Assets
Cash and cash equivalents	0	0	0	0
Accounts receivable	0	0
Other current assets	(3,333)	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	(2,462,393)	(2,350,467)
Intercompany Receivable	(408,329)	(248,719)
Other assets	0	0
Total assets	(2,923,420)	(2,648,551)
Liabilities and Equity
Current liabilities	(3,333)	0
Long-term debt, net	0	0
Deferred revenue	0	0
Deferred income taxes, long term	(49,365)	(49,365)
Intercompany Payable	(408,329)	(248,719)
Other liabilities	0	0
Redeemable noncontrolling interests	0	0
Total Corelogic's stockholders' equity	(2,462,393)	(2,350,467)
Total liabilities and equity	(2,923,420)	(2,648,551)
Total [Member]
Assets
Cash and cash equivalents	$ 160,257	$ 104,677	$ 127,618	$ 134,419