Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Numerator for basic and diluted net (loss)/income per share:
Net income from continuing operations	$ 41,208	$ 40,041	$ 70,259	$ 61,645
(Loss)/income from discontinued operations, net of tax	983	(8,556)	(7,985)	(6,905)
Gain/(loss) from sale of discontinued operations, net of tax	466	0	(2,987)	0
Net income attributable to CoreLogic	$ 42,657	$ 31,485	$ 59,287	$ 54,740
Denominator for basic and diluted net (loss)/income per share:
Weighted-average shares for basic income/(loss) per share	105,895	108,018	106,245	111,781
Diluted effect of stock options and restricted stock units	573	623	641	705
Weighted-average shares for diluted income/(loss) per share	106,468	108,641	106,886	112,486
Earnings Per Share, Basic
Net income from continuing operations	$ 0.39	$ 0.37	$ 0.66	$ 0.55
Gain/(loss) from discontinued operations, net of tax	$ 0.01	$ (0.08)	$ (0.08)	$ (0.06)
Gain/(loss) from sale of discontinued operations, net of tax	$ 0.00	$ 0.00	$ (0.03)	$ 0.00
Net income attributable to Corelogic	$ 0.40	$ 0.29	$ 0.55	$ 0.49
Earnings Per Share, Diluted
Net income from continuing operations	$ 0.39	$ 0.37	$ 0.66	$ 0.55
Gain/(loss) from discontinued operations, net of tax	$ 0.01	$ (0.08)	$ (0.07)	$ (0.06)
Gain/(loss) from sale of discontinued operations, net of tax	$ 0.00	$ 0.00	$ (0.03)	$ 0.00
Net income attributable to Corelogic	$ 0.40	$ 0.29	$ 0.56	$ 0.49