Guarantor Subsidiaries (Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating revenue	$ 390,886	$ 386,439	$ 386,013	$ 364,772	$ 345,512	$ 367,454	$ 365,970	$ 326,104	$ 1,528,110	$ 1,405,040	$ 1,404,401
Intercompany revenue									0	0	0
Cost of services (exclusive of depreciation and amortization)									776,509	740,301	717,205
Selling, general and administrative expenses									398,300	351,617	374,289
Depreciation and amortization									146,607	138,394	126,332
Impairment loss									3,770	4,970	44,433
Operating (loss)/income	27,032	65,920	60,707	49,265	36,161	77,752	41,020	14,825	202,924	169,758	142,142
Total interest expense, net									(61,290)	(66,982)	(47,602)
(Loss)/gain on investments and other, net									31,592	3,882	12,032
(Benefit)/Provision for income taxes									57,394	29,770	33,673
Equity in earnings/(loss) of affiliates, net of tax	1,789	3,498	4,667	3,766	3,832	4,031	3,875	2,382	13,720	14,120	27,361
Equity in earnings of subsidiary, net of tax									0	0	0
Net income from continuing operations									129,552	91,008	100,260
(Loss)/income from discontinued operations, net of tax									(556)	(16,653)	14,423
Gain/(loss) from sale of discontinued operations, net of tax									0	112	(7,008)
Less: Net income/(loss) attributable to noncontrolling interests									1,152	1,267	(53)
Net income attributable to CoreLogic	$ 37,705	$ 28,171	$ 32,789	$ 29,179	$ 14,666	$ 45,338	$ 15,988	$ (2,792)	127,844	73,200	107,728
Net income									128,996	74,467	107,675
Total other comprehensive loss									(36,330)	(30,197)	(38,075)
Less: Comprehensive income/(loss) attributable to the noncontrolling interests									1,152	1,267	(53)
Comprehensive income/(loss) attributable to CoreLogic									91,514	43,003	69,653
Parent [Member]
Operating revenue									0	0	0
Intercompany revenue									0	0	0
Cost of services (exclusive of depreciation and amortization)									0	0	0
Selling, general and administrative expenses									68,814	58,176	63,205
Depreciation and amortization									4,981	4,836	3,767
Impairment loss									0	0	0
Operating (loss)/income									(73,795)	(63,012)	(66,972)
Total interest expense, net									(57,457)	(65,299)	(45,270)
(Loss)/gain on investments and other, net									(2,654)	5,070	3,785
(Benefit)/Provision for income taxes									(46,928)	(43,448)	(40,392)
Equity in earnings/(loss) of affiliates, net of tax									0	0	0
Equity in earnings of subsidiary, net of tax									214,822	152,993	175,793
Net income from continuing operations									127,844	73,200	107,728
(Loss)/income from discontinued operations, net of tax									0	0	0
Gain/(loss) from sale of discontinued operations, net of tax										0	0
Less: Net income/(loss) attributable to noncontrolling interests									0	0	0
Net income attributable to CoreLogic									127,844	73,200	107,728
Net income									127,844	73,200	107,728
Total other comprehensive loss									(36,330)	(30,197)	(38,075)
Less: Comprehensive income/(loss) attributable to the noncontrolling interests									0	0	0
Comprehensive income/(loss) attributable to CoreLogic									91,514	43,003	69,653
Guarantor Subsidiaries [Member]
Operating revenue									1,397,431	1,263,980	1,303,115
Intercompany revenue									0	0	0
Cost of services (exclusive of depreciation and amortization)									729,029	686,630	679,032
Selling, general and administrative expenses									290,239	252,879	276,236
Depreciation and amortization									117,870	107,002	98,670
Impairment loss									3,770	4,970	44,433
Operating (loss)/income									256,523	212,499	204,744
Total interest expense, net									(1,405)	(627)	(2)
(Loss)/gain on investments and other, net									34,323	(6,278)	1,250
(Benefit)/Provision for income taxes									99,664	73,179	72,385
Equity in earnings/(loss) of affiliates, net of tax									14,690	14,120	26,566
Equity in earnings of subsidiary, net of tax									0	0	0
Net income from continuing operations									204,467	146,535	160,173
(Loss)/income from discontinued operations, net of tax									(556)	(16,653)	14,595
Gain/(loss) from sale of discontinued operations, net of tax										(1,424)	(8,514)
Less: Net income/(loss) attributable to noncontrolling interests									0	0	0
Net income attributable to CoreLogic									203,911	128,458	166,254
Net income									203,911	128,458	166,254
Total other comprehensive loss									0	0	0
Less: Comprehensive income/(loss) attributable to the noncontrolling interests									0	0	0
Comprehensive income/(loss) attributable to CoreLogic									203,911	128,458	166,254
Non-Guarantor Subsidiaries [Member]
Operating revenue									130,679	141,060	101,286
Intercompany revenue									717	637	631
Cost of services (exclusive of depreciation and amortization)									47,518	53,696	38,804
Selling, general and administrative expenses									39,926	41,174	34,848
Depreciation and amortization									23,756	26,556	23,895
Impairment loss									0	0	0
Operating (loss)/income									20,196	20,271	4,370
Total interest expense, net									(2,428)	(1,056)	(2,330)
(Loss)/gain on investments and other, net									(77)	5,090	6,997
(Benefit)/Provision for income taxes									4,658	39	1,680
Equity in earnings/(loss) of affiliates, net of tax									(970)	0	795
Equity in earnings of subsidiary, net of tax									0	0	0
Net income from continuing operations									12,063	24,266	8,152
(Loss)/income from discontinued operations, net of tax									0	0	(172)
Gain/(loss) from sale of discontinued operations, net of tax										1,536	1,506
Less: Net income/(loss) attributable to noncontrolling interests									1,152	1,267	(53)
Net income attributable to CoreLogic									10,911	24,535	9,539
Net income									12,063	25,802	9,486
Total other comprehensive loss									(36,968)	(26,673)	(43,337)
Less: Comprehensive income/(loss) attributable to the noncontrolling interests									1,152	1,267	(53)
Comprehensive income/(loss) attributable to CoreLogic									(26,057)	(2,138)	(33,798)
Consolidating/Eliminating Adjustments [Member]
Operating revenue									0	0	0
Intercompany revenue									(717)	(637)	(631)
Cost of services (exclusive of depreciation and amortization)									(38)	(25)	(631)
Selling, general and administrative expenses									(679)	(612)	0
Depreciation and amortization									0	0	0
Impairment loss									0	0	0
Operating (loss)/income									0	0	0
Total interest expense, net									0	0	0
(Loss)/gain on investments and other, net									0	0	0
(Benefit)/Provision for income taxes									0	0	0
Equity in earnings/(loss) of affiliates, net of tax									0	0	0
Equity in earnings of subsidiary, net of tax									(214,822)	(152,993)	(175,793)
Net income from continuing operations									(214,822)	(152,993)	(175,793)
(Loss)/income from discontinued operations, net of tax									0	0	0
Gain/(loss) from sale of discontinued operations, net of tax										0	0
Less: Net income/(loss) attributable to noncontrolling interests									0	0	0
Net income attributable to CoreLogic									(214,822)	(152,993)	(175,793)
Net income									(214,822)	(152,993)	(175,793)
Total other comprehensive loss									36,968	26,673	43,337
Less: Comprehensive income/(loss) attributable to the noncontrolling interests									0	0	0
Comprehensive income/(loss) attributable to CoreLogic									$ (177,854)	$ (126,320)	$ (132,456)