Earnings Per Share (Reconciliation of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Numerator for basic and diluted net (loss)/income per share:
Net income from continuing operations	$ 12,708	$ 27,538
Loss from discontinued operations, net of tax	2,417	(58)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	313	0	$ 0
Net income/(loss) attributable to CoreLogic	$ 15,438	$ 27,480
Denominator for basic and diluted net (loss)/income per share:
Weighted-average shares for basic income per share (in shares)	84,432	88,310
Diluted effect of stock options and restricted stock units (in shares)	1,909	1,609
Weighted-average shares for diluted income per share (in shares)	86,341	89,919
Earnings Per Share, Basic
Net income from continuing operations (usd per share)	$ 0.15	$ 0.31
Income/(loss) from discontinued operations, net of tax (usd per share)	0.03	0.00
Gain Loss On Sale Of Discontinued Operations Net Of Tax Per Basic Share	0.00	0.00
Net income attributable to CoreLogic (usd per share)	0.18	0.31
Earnings Per Share, Diluted
Net income from continuing operations (usd per share)	0.15	0.31
Income/(loss) from discontinued operations, net of tax (usd per share)	0.03	0.00
Gain Loss On Sale Of Discontinued Operations Net Of Tax Per Diluted Share	0.00	0.00
Net income attributable to CoreLogic (usd per share)	$ 0.18	$ 0.31