Unaudited Quarterly Financial Data (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating revenue	$ 311,923	$ 339,205	$ 348,201	$ 331,301	$ 334,025	$ 321,128	$ 296,543	$ 283,687	$ 1,330,630	$ 1,235,383	$ 1,010,179
Operating income	21,557	56,469	47,513	47,337	46,110	43,491	46,595	33,776	172,876	169,972	36,860
Equity in earnings of affiliates, net of tax	3,512	5,717	9,345	8,787	6,602	8,166	11,745	9,470	27,361	35,983	30,515
Income from continuing operations, net of tax	26,228	40,383	31,971	31,618	15,206	25,246	28,361	22,016	130,200	90,829	21,103
(Loss)/income from discontinued operations, net of tax	(39,070)	8,331	11,579	3,696	4,914	810	13,830	(1,931)	(15,464)	17,623	(95,712)
Loss from sale of discontinued operations, net of tax	(211)	(5,052)	0	(1,745)	(5,435)	12,264	466	(3,454)
Net income/(loss) attributable to CoreLogic	$ (13,053)	$ 43,662	$ 43,550	$ 33,569	$ 14,685	$ 38,320	$ 42,657	$ 16,631	$ 107,728	$ 112,293	$ (74,609)
Earnings Per Share, Basic
Income from continuing operations, net of tax (in dollars per share)	$ 0.28	$ 0.43	$ 0.33	$ 0.33	$ 0.07	$ 0.08	$ 0.11	$ 0.09	$ 1.37	$ 0.88	$ 0.19
(Loss)/income from discontinued operations, net of tax (in dollars per share)	$ (0.42)	$ 0.09	$ 0.12	$ 0.04	$ 0.15	$ 0.25	$ 0.27	$ 0.21	$ (0.16)	$ 0.17	$ (0.88)
(Loss)/gain from sale of discontinued operations, net of tax (in dollars per share)	$ 0.00	$ (0.05)	$ 0.00	$ (0.02)	$ (0.06)	$ 0.12	$ 0.00	$ (0.03)	$ (0.07)	$ 0.04	$ 0.00
Net income (in dollars per share)	$ (0.14)	$ 0.47	$ 0.45	$ 0.35	$ 0.16	$ 0.45	$ 0.38	$ 0.27	$ 1.14	$ 1.09	$ (0.69)
Earnings Per Share, Diluted
Income from continuing operations, net of tax (in dollars per share)	$ 0.28	$ 0.42	$ 0.33	$ 0.32	$ 0.07	$ 0.08	$ 0.11	$ 0.09	$ 1.34	$ 0.87	$ 0.19
(Loss)/income from discontinued operations, net of tax (in dollars per share)	$ (0.41)	$ 0.09	$ 0.12	$ 0.04	$ 0.15	$ 0.24	$ 0.27	$ 0.20	$ (0.16)	$ 0.17	$ (0.87)
(Loss)/gain from sale of discontinued operations, net of tax (in dollars per share)	$ 0.00	$ (0.05)	$ 0.00	$ (0.02)	$ (0.05)	$ 0.12	$ 0.00	$ (0.03)	$ (0.07)	$ 0.04	$ 0.00
Earnings Per Share, Diluted	$ (0.13)	$ 0.46	$ 0.45	$ 0.34	$ 0.17	$ 0.44	$ 0.38	$ 0.26	$ 1.11	$ 1.08	$ (0.68)
Weighted-average common shares outstanding:
Basic (in shares)	92,946	94,773	95,516	97,113	97,513	101,650	105,895	106,594	95,088	102,913	109,122
Diluted (in shares)	95,115	96,793	97,180	99,056	99,346	103,113	106,468	107,327	97,109	104,050	109,712