Guarantor Subsidiaries (Balance Sheet) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 133,104	$ 99,090	$ 89,706	$ 104,677
Accounts receivable	245,110	240,988
Other current assets	98,379	202,188
Property and equipment, net	370,025	375,654
Goodwill, net	1,890,181	1,881,547
Other intangible assets, net	341,840	352,148
Capitalized data and database developement costs net	331,382	327,841
Investment in affiliates, net	64,563	69,205
Deferred income tax assets, long-term	12,455	2,219
Restricted cash	11,043	10,926
Investments in subsidiaries	0	0
Intercompany receivable	0	0
Other assets	108,563	111,910
Total assets	3,606,645	3,673,716
Liabilities and Equity
Current liabilities	585,790	614,476
Long-term debt, net of current	1,278,941	1,288,177
Deferred revenue, net of current	452,449	448,819
Deferred income taxes, long term	25,308	107,249
Intercompany payable	0	0
Other liabilities	169,243	165,505
Total Corelogic's stockholders' equity	1,094,914	1,049,490
Total liabilities and equity	3,606,645	3,673,716
Parent [Member]
Assets
Cash and cash equivalents	78,600	28,259	48,894	61,602
Accounts receivable	0	0
Other current assets	55,028	80,110
Property and equipment, net	16,861	17,806
Goodwill, net	0	0
Other intangible assets, net	219	233
Capitalized data and database developement costs net	0	0
Investment in affiliates, net	0	0
Deferred income tax assets, long-term	69,499	51,763
Restricted cash	9,780	9,777
Investments in subsidiaries	2,550,226	2,539,614
Intercompany receivable	146,818	128,222
Other assets	74,522	102,148
Total assets	3,001,553	2,957,932
Liabilities and Equity
Current liabilities	132,628	136,863
Long-term debt, net of current	1,277,422	1,313,895
Deferred revenue, net of current	0	0
Deferred income taxes, long term	0	0
Intercompany payable	363,317	329,847
Other liabilities	133,272	127,837
Total Corelogic's stockholders' equity	1,094,914	1,049,490
Total liabilities and equity	3,001,553	2,957,932
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	19,702	33,186	3,583	8,733
Accounts receivable	215,710	211,943
Other current assets	38,534	117,008
Property and equipment, net	316,934	322,109
Goodwill, net	1,700,102	1,700,102
Other intangible assets, net	309,706	319,756
Capitalized data and database developement costs net	259,097	258,425
Investment in affiliates, net	63,330	68,112
Deferred income tax assets, long-term	0	0
Restricted cash	0	0
Investments in subsidiaries	0	0
Intercompany receivable	363,317	329,847
Other assets	32,632	8,420
Total assets	3,319,064	3,368,908
Liabilities and Equity
Current liabilities	403,752	410,538
Long-term debt, net of current	1,519	(25,718)
Deferred revenue, net of current	452,286	448,654
Deferred income taxes, long term	60,557	132,228
Intercompany payable	22,325	22,325
Other liabilities	34,149	35,982
Total Corelogic's stockholders' equity	2,344,476	2,344,899
Total liabilities and equity	3,319,064	3,368,908
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	34,802	37,645	37,229	34,342
Accounts receivable	29,400	29,045
Other current assets	4,817	5,070
Property and equipment, net	36,230	35,739
Goodwill, net	190,079	181,445
Other intangible assets, net	31,915	32,159
Capitalized data and database developement costs net	72,285	69,416
Investment in affiliates, net	1,233	1,093
Deferred income tax assets, long-term	2,240	2,219
Restricted cash	1,263	1,149
Investments in subsidiaries	0	0
Intercompany receivable	0	0
Other assets	1,409	1,342
Total assets	405,673	396,322
Liabilities and Equity
Current liabilities	49,410	67,075
Long-term debt, net of current	0	0
Deferred revenue, net of current	163	165
Deferred income taxes, long term	24,035	26,784
Intercompany payable	124,493	105,897
Other liabilities	1,822	1,686
Total Corelogic's stockholders' equity	205,750	194,715
Total liabilities and equity	405,673	396,322
Consolidation, Eliminations [Member]
Assets
Cash and cash equivalents	0	0	$ 0	$ 0
Accounts receivable	0	0
Other current assets	0	0
Property and equipment, net	0	0
Goodwill, net	0	0
Other intangible assets, net	0	0
Capitalized data and database developement costs net	0	0
Investment in affiliates, net	0	0
Deferred income tax assets, long-term	(59,284)	(51,763)
Restricted cash	0	0
Investments in subsidiaries	(2,550,226)	(2,539,614)
Intercompany receivable	(510,135)	(458,069)
Other assets	0	0
Total assets	(3,119,645)	(3,049,446)
Liabilities and Equity
Current liabilities	0	0
Long-term debt, net of current	0	0
Deferred revenue, net of current	0	0
Deferred income taxes, long term	(59,284)	(51,763)
Intercompany payable	(510,135)	(458,069)
Other liabilities	0	0
Total Corelogic's stockholders' equity	(2,550,226)	(2,539,614)
Total liabilities and equity	$ (3,119,645)	$ (3,049,446)