Earnings Per Share (Reconciliation of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator for basic and diluted net (loss)/income per share:
Net income from continuing operations	$ 30,828	$ 36,002	$ 84,722	$ 103,965
(Loss)/gain from discontinued operations, net of tax	(74)	(936)	2,421	(998)
Gain from sale of discontinued operations, net of tax	0	0	310	0
Net income attributable to CoreLogic	$ 30,754	$ 35,066	$ 87,453	$ 102,967
Denominator for basic and diluted net (loss)/income per share:
Weighted-average shares for basic income per share (in shares)	83,362	87,584	84,114	88,141
Dilutive effect of stock options and restricted stock units (in shares)	1,728	1,604	1,726	1,560
Weighted-average shares for diluted income per share (in shares)	85,090	89,188	85,840	89,701
Earnings Per Share, Basic
Net income from continuing operations (usd per share)	$ 0.37	$ 0.41	$ 1.01	$ 1.18
Gain/(loss) from discontinued operations, net of tax (usd per share)	0.00	(0.01)	0.03	(0.01)
Gain from sale of discontinued operations, net of tax (usd per share)	0.00	0.00	0.00	0.00
Net income attributable to CoreLogic (usd per share)	0.37	0.40	1.04	1.17
Earnings Per Share, Diluted
Net income from continuing operations (usd per share)	0.36	0.40	0.99	1.16
Gain/(loss) from discontinued operations, net of tax (usd per share)	0.00	(0.01)	0.03	(0.01)
Gain from sale of discontinued operations, net of tax (usd per share)	0.00	0.00	0.00	0.00
Net income attributable to CoreLogic (usd per share)	$ 0.36	$ 0.39	$ 1.02	$ 1.15