Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Earnings Per Share [Line Items]
Net income from continuing operations	$ 29,052	$ 21,605
Numerator for basic and diluted net (loss)/income per share:
(Loss)/income from discontinued operations, net of tax	(8,967)	1,651
Loss from sale of discontinued operations, net of tax	(3,454)	0
Net income attributable to CoreLogic	$ 16,631	$ 23,256
Denominator for basic and diluted net (loss)/income per share:
Weighted-average shares for basic income/(loss) per share	106,594	115,545
Diluted effect of stock options and restricted stock units	733	761
Weighted-average shares for diluted income/(loss) per share	107,327	116,306
Earnings Per Share, Basic
Net income from continuing operations	$ 0.27	$ 0.19
(Loss)/income from discontinued operations, net of tax	$ (0.08)	$ 0.01
Loss from sale of discontinued operations, net of tax	$ (0.03)	$ 0.00
Net income attributable to Corelogic	$ 0.16	$ 0.20
Earnings Per Share, Diluted
Net income from continuing operations	$ 0.27	$ 0.19
(Loss)/income from discontinued operations, net of tax	$ (0.08)	$ 0.01
Loss from sale of discontinued operations, net of tax	$ (0.03)	$ 0.00
Net income attributable to Corelogic	$ 0.16	$ 0.20