Stock-Based Compensation (Restricted Stock Units and PBRSU) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 Restricted Stock Units (RSUs) [Member]	Jun. 30, 2013 Restricted Stock Units (RSUs) [Member]	Jun. 30, 2014 Restricted Stock [Member]	Jun. 30, 2014 PBRSU [Member]		Jun. 30, 2013 PBRSU [Member]		May 19, 2011 CoreLogic 2011 Performance Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares available in award pool								18,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate				0.00%		0.00%
Number of Shares
Outstanding, Beginning of Period	1,466,000			1,247,000
Granted	772,238	664,116		367,558		397,443
Vested	(592,000)			(612,000)
Forfeited	(64,000)			(38,000)
Outstanding, End of Period	1,582,000			965,000
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Beginning Balance	$ 22.13			$ 18.52
Granted, Weighted Average Grant Date Fair Value	$ 30.57			$ 31.46
Vested, Weighted Average Grant Date Fair Value	$ 20.47			$ 16.92
Forfeited, Weighted Average Exercise Price	$ 25.11			$ 26.87
Weighted Average Grant Date Fair Value, Ending Balance	$ 26.75			$ 22.14
Restricted stock units, estimated grant date fair value	$ 23.6	$ 17.2		$ 11.6		$ 10.3
Total unrecognized compensation cost related to unvested awards			$ 30.8	$ 13.0
Nonvested awards, weighted average remaining period (in years)			2 years 2 months 25 days	2 years 1 month 26 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate				0.74%	[1]	0.39%	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate				27.88%	[2]	29.97%	[2]
Share-based Compensation Arrangement, Fair Value, Average Shareholder Return [Abstract]				(0.90%)	[2]	13.01%	[2]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years

[1] The risk-free interest rate for the periods within the contractual term of the PBRSUs is based on the U.S. Treasury yield curve in effect at the time of the grant.

[2] The expected volatility and average total shareholder return is a measure of the amount by which a stock price has fluctuated or is expected to fluctuate based primarily on our and our peers' historical data.