Income Taxes (Reconciliation) (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CoreLogic [Member]
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	4.00%	3.40%	6.20%
Foreign taxes (less than)/in excess of federal rate	(0.90%)	0.40%	(5.60%)
Nontaxable gain on contingent payment reversal	(1.70%)	0.00%	0.00%
Nontaxable/nondeductible items	0.60%	0.50%	1.70%
Change from investee to subsidiary	0.00%	(2.50%)	0.00%
Change in uncertain tax positions	(1.30%)	(0.70%)	1.30%
Research and development credits	(1.60%)	(2.60%)	(7.90%)
Net impact of FAFC indemnity	(8.70%)	0.00%	0.00%
Valuation allowance on impaired investments	8.20%	0.00%	0.00%
Other items, net	(0.30%)	(0.10%)	(2.50%)
Effective income tax rate	33.30%	33.40%	28.20%
Affiliates [Member]
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	6.10%	3.40%	3.60%
Foreign taxes (less than)/in excess of federal rate	26.00%	1.50%	0.00%
Nontaxable gain on contingent payment reversal	0.00%	0.00%	0.00%
Nontaxable/nondeductible items	0.00%	0.00%	0.00%
Change from investee to subsidiary	0.00%	0.00%	0.00%
Change in uncertain tax positions	0.00%	0.00%	0.00%
Research and development credits	(0.00%)	(0.00%)	(0.00%)
Net impact of FAFC indemnity	0.00%	0.00%	0.00%
Valuation allowance on impaired investments	0.00%	0.00%	0.00%
Other items, net	0.00%	0.00%	0.00%
Effective income tax rate	67.10%	39.90%	38.60%

Effective Income Tax Rate Reconciliation, indemnification position change, Percent

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Effective Income Tax Reconciliation, Change From Investee to Subsidiary

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Effective Income Tax Reconciliation, Change in Uncertain Tax Positions

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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