Earnings/(Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Numerator for basic and diluted net income/(loss) per share:
Income from continuing operations, net of tax	$ 5,982	$ 36,002	$ 40,424	$ 27,538	$ 37,816	$ 28,288	$ 33,006	$ 29,290	$ 109,946	$ 128,400	$ 89,741
Loss from discontinued operations, net of tax	(468)	(936)	(4)	(58)	(111)	(117)	(217)	(111)	(1,466)	(556)	(16,653)
(Loss)/gain from sale of discontinued operations, net of tax									(1,930)	0	112
Net income attributable to CoreLogic	$ 3,584	$ 35,066	$ 40,420	$ 27,480	$ 37,705	$ 28,171	$ 32,789	$ 29,179	$ 106,550	$ 127,844	$ 73,200
Denominator (in shares):
Weighted-average shares for basic income/(loss) per share	85,534	87,584	88,572	88,310	88,157	88,719	89,564	89,751	87,502	89,070	90,825
Dilutive effect of stock options and restricted stock units									1,620	1,494	1,604
Weighted-average shares for diluted income/(loss) per share	87,289	89,188	89,968	89,919	89,789	90,154	90,963	91,117	89,122	90,564	92,429
Earnings Per Share, Basic (usd per share)
Income from continuing operations, net of tax	$ 0.07	$ 0.41	$ 0.46	$ 0.31	$ 0.43	$ 0.32	$ 0.37	$ 0.33	$ 1.26	$ 1.44	$ 0.99
Loss from discontinued operations, net of tax	(0.01)	(0.01)	0.00	0.00					(0.02)	(0.01)	(0.18)
(Loss)/gain from sale of discontinued operations, net of tax	(0.02)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	(0.02)	0.00	0.00
Net income attributable to CoreLogic	0.04	0.40	0.46	0.31	0.43	0.32	0.37	0.33	1.22	1.43	0.81
Earnings Per Share, Diluted (usd per share)
Income from continuing operations, net of tax	0.07	0.40	0.45	0.31	0.42	0.31	0.36	0.32	1.23	1.42	0.97
Loss from discontinued operations, net of tax	(0.01)	(0.01)	0.00	0.00					(0.02)	(0.01)	(0.18)
(Loss)/gain from sale of discontinued operations, net of tax	(0.02)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	(0.02)	0.00	0.00
Earnings Per Share, Diluted	$ 0.04	$ 0.39	$ 0.45	$ 0.31	$ 0.42	$ 0.31	$ 0.36	$ 0.32	$ 1.19	$ 1.41	$ 0.79
Stock options excluded from weighted average diluted shares outstanding									100	100	300