Unaudited Quarterly Financial Data (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Operating revenue	$ 390,886	$ 386,439	$ 386,013	$ 364,772	$ 345,512	$ 367,454	$ 365,970	$ 326,104	$ 1,528,110	$ 1,405,040	$ 1,404,401
Operating income	27,032	65,920	60,707	49,265	36,161	77,752	41,020	14,825	202,924	169,758	142,142
Equity in earnings/(loss) of affiliates, net of tax	1,789	3,498	4,667	3,766	3,832	4,031	3,875	2,382	13,720	14,120	27,361
Income from continuing operations, net of tax	37,816	28,288	33,006	29,290	16,462	49,718	26,740	(3,179)	128,400	89,741	100,313
(Loss)/income from discontinued operations, net of tax	(111)	(117)	(217)	(111)	(1,432)	(4,856)	(10,752)	387	(556)	(16,653)	14,423
Gain/(loss) from sale of discontinued operations, net of tax					(364)	476	0	0
Net income attributable to CoreLogic	$ 37,705	$ 28,171	$ 32,789	$ 29,179	$ 14,666	$ 45,338	$ 15,988	$ (2,792)	$ 127,844	$ 73,200	$ 107,728
Earnings Per Share, Basic (usd per share)
Income from continuing operations, net of tax	$ 0.43	$ 0.32	$ 0.37	$ 0.33	$ 0.18	$ 0.55	$ 0.29	$ (0.03)	$ 1.44	$ 0.99	$ 1.05
(Loss)/income from discontinued operations, net of tax	0.00	0.00	0.00	0.00	(0.02)	(0.05)	(0.12)	0.00	(0.01)	(0.18)	0.15
Gain/(loss) from sale of discontinued operations, net of tax					0.00	0.01	0.00	0.00	0.00	0.00	(0.07)
Net income (in dollars per share)	0.43	0.32	0.37	0.33	0.16	0.51	0.17	(0.03)	1.43	0.81	1.13
Earnings Per Share, Diluted (usd per share)
Income from continuing operations, net of tax	0.42	0.31	0.36	0.32	0.18	0.54	0.29	(0.03)	1.42	0.97	1.03
Loss from discontinued operations, net of tax	0.00	0.00	0.00	0.00	(0.02)	(0.05)	(0.12)	0.00	(0.01)	(0.18)	0.15
Gain/(loss) from sale of discontinued operations, net of tax					0.00	0.01	0.00	0.00	0.00	0.00	(0.07)
Earnings Per Share, Diluted	$ 0.42	$ 0.31	$ 0.36	$ 0.32	$ 0.16	$ 0.50	$ 0.17	$ (0.03)	$ 1.41	$ 0.79	$ 1.11
Weighted-average common shares outstanding:
Basic (in shares)	88,157	88,719	89,564	89,751	89,597	90,518	91,750	91,433	89,070	90,825	95,088
Diluted (in shares)	89,789	90,154	90,963	91,117	91,245	91,987	93,062	91,433	90,564	92,429	97,109