Guarantor Subsidiaries (Income Statement) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Operating Revenue	$ 367,454,000	$ 356,581,000	$ 1,059,528,000	$ 1,075,879,000
Intercompany Revenue	0
Cost of services (excluding depreciation and amortization shown below)	185,168,000	177,898,000	564,916,000	539,796,000
Selling, General and Administrative Expense	68,099,000	87,886,000	255,488,000	276,257,000
Depreciation and amortization	35,765,000	29,436,000	100,636,000	96,697,000
Asset Impairment Charges	667,000	0	4,888,000	1,721,000
(Loss)/income from continuing operations	77,755,000	61,361,000	133,600,000	161,408,000
Interest Income (Expense), Net	(17,528,000)	(11,512,000)	(49,464,000)	(34,870,000)
Gain/(loss) on investment and other, net	183,000	7,627,000	2,825,000	9,362,000
(Benefit)/provision for income taxes	14,319,000	19,765,000	23,070,000	50,087,000
Equity in earnings of affiliates, net of tax	4,032,000	5,716,000	10,289,000	23,848,000
Equity in earnings of subsidiary, net of tax	0
Net income from continuing operations	50,123,000	43,427,000	74,180,000	109,661,000
(Loss)/income from discontinued operations, net of tax	(4,856,000)	5,332,000	(15,219,000)	17,935,000
Gain on sale of discontinued operations, net of tax	476,000	(5,052,000)	476,000	(6,796,000)
Net income/(loss)	45,743,000	43,707,000	59,437,000	120,800,000
Less: Net loss attributable to noncontrolling interests	404,000	45,000	899,000	19,000
Net income attributable to CoreLogic	45,339,000	43,662,000	58,538,000	120,781,000
Total other comprehensive income/(loss)	(25,637,000)	7,345,000	(6,305,000)	(31,127,000)
Less: Comprehensive income attributable to the noncontrolling interests	404,000	45,000	899,000	19,000
Comprehensive income attributable to CoreLogic	19,702,000	51,007,000	52,233,000	89,654,000
Parent [Member]
Operating Revenue	0	0	0	0
Intercompany Revenue	0	0	0	0
Cost of services (excluding depreciation and amortization shown below)	0	0	0	0
Selling, General and Administrative Expense	9,289,000	11,997,000	40,975,000	49,450,000
Depreciation and amortization	1,212,000	962,000	3,606,000	2,655,000
Asset Impairment Charges	0		0
(Loss)/income from continuing operations	(10,501,000)	(12,959,000)	(44,581,000)	(52,105,000)
Interest Income (Expense), Net	(17,321,000)	(11,547,000)	(48,029,000)	(34,993,000)
Gain/(loss) on investment and other, net	(398,000)	(260,000)	(3,413,000)	1,474,000
(Benefit)/provision for income taxes	(16,279,000)	(10,640,000)	(41,306,000)	(33,583,000)
Equity in earnings of affiliates, net of tax	0	0	0	0
Equity in earnings of subsidiary, net of tax	57,280,000	57,788,000	113,255,000	172,822,000
Net income from continuing operations	45,339,000	43,662,000	58,538,000	120,781,000
(Loss)/income from discontinued operations, net of tax	0	0	0	0
Gain on sale of discontinued operations, net of tax	0	0	0	0
Net income/(loss)	45,339,000	43,662,000	58,538,000	120,781,000
Less: Net loss attributable to noncontrolling interests	0	0	0	0
Net income attributable to CoreLogic	45,339,000	43,662,000	58,538,000	120,781,000
Total other comprehensive income/(loss)	(25,637,000)	7,345,000	(6,305,000)	(31,127,000)
Less: Comprehensive income attributable to the noncontrolling interests	0	0	0	0
Comprehensive income attributable to CoreLogic	19,702,000	51,007,000	52,233,000	89,654,000
Guarantor Subsidiaries [Member]
Operating Revenue	329,057,000	331,306,000	954,224,000	1,003,699,000
Intercompany Revenue	0	0	0	0
Cost of services (excluding depreciation and amortization shown below)	171,419,000	169,904,000	523,455,000	513,666,000
Selling, General and Administrative Expense	47,112,000	66,533,000	184,277,000	200,879,000
Depreciation and amortization	27,846,000	22,752,000	77,271,000	76,579,000
Asset Impairment Charges	667,000		4,888,000
(Loss)/income from continuing operations	82,013,000	72,117,000	164,333,000	210,854,000
Interest Income (Expense), Net	(80,000)	(126,000)	(194,000)	(345,000)
Gain/(loss) on investment and other, net	31,000	1,250,000	5,688,000	1,251,000
(Benefit)/provision for income taxes	30,786,000	26,994,000	59,657,000	80,056,000
Equity in earnings of affiliates, net of tax	4,032,000	5,479,000	10,289,000	23,053,000
Equity in earnings of subsidiary, net of tax	0	0	0	0
Net income from continuing operations	55,210,000	51,726,000	120,459,000	154,757,000
(Loss)/income from discontinued operations, net of tax	(4,856,000)	5,332,000	(15,219,000)	18,107,000
Gain on sale of discontinued operations, net of tax	(1,060,000)	(6,558,000)	(1,060,000)	(8,302,000)
Net income/(loss)	49,294,000	50,500,000	104,180,000	164,562,000
Less: Net loss attributable to noncontrolling interests	0	0	0	0
Net income attributable to CoreLogic	49,294,000	50,500,000	104,180,000	164,562,000
Total other comprehensive income/(loss)	0	0	0	0
Less: Comprehensive income attributable to the noncontrolling interests	0	0	0	0
Comprehensive income attributable to CoreLogic	49,294,000	50,500,000	104,180,000	164,562,000
Non-Guarantor Subsidiaries [Member]
Operating Revenue	38,397,000	25,275,000	105,304,000	72,180,000
Intercompany Revenue	182,000	148,000	475,000	493,000
Cost of services (excluding depreciation and amortization shown below)	13,768,000	8,142,000	41,478,000	26,623,000
Selling, General and Administrative Expense	11,861,000	9,356,000	30,694,000	25,928,000
Depreciation and amortization	6,707,000	5,722,000	19,759,000	17,463,000
Asset Impairment Charges	0		0
(Loss)/income from continuing operations	6,243,000	2,203,000	13,848,000	2,659,000
Interest Income (Expense), Net	(127,000)	161,000	(1,241,000)	468,000
Gain/(loss) on investment and other, net	550,000	6,637,000	550,000	6,637,000
(Benefit)/provision for income taxes	(188,000)	3,411,000	4,719,000	3,614,000
Equity in earnings of affiliates, net of tax	0	237,000	0	795,000
Equity in earnings of subsidiary, net of tax	0	0	0	0
Net income from continuing operations	6,854,000	5,827,000	8,438,000	6,945,000
(Loss)/income from discontinued operations, net of tax	0	0	0	(172,000)
Gain on sale of discontinued operations, net of tax	1,536,000	1,506,000	1,536,000	1,506,000
Net income/(loss)	8,390,000	7,333,000	9,974,000	8,279,000
Less: Net loss attributable to noncontrolling interests	404,000	45,000	899,000	19,000
Net income attributable to CoreLogic	7,986,000	7,288,000	9,075,000	8,260,000
Total other comprehensive income/(loss)	(26,251,000)	7,644,000	(8,709,000)	(32,289,000)
Less: Comprehensive income attributable to the noncontrolling interests	404,000	45,000	899,000	19,000
Comprehensive income attributable to CoreLogic	(18,265,000)	14,932,000	366,000	(24,029,000)
Consolidation, Eliminations [Member]
Operating Revenue	0	0	0	0
Intercompany Revenue	(182,000)	(148,000)	(475,000)	(493,000)
Cost of services (excluding depreciation and amortization shown below)	(19,000)	(148,000)	(17,000)	(493,000)
Selling, General and Administrative Expense	(163,000)	0	(458,000)	0
Depreciation and amortization	0	0	0	0
Asset Impairment Charges	0		0
(Loss)/income from continuing operations	0	0	0	0
Interest Income (Expense), Net	0	0	0	0
Gain/(loss) on investment and other, net	0	0	0	0
(Benefit)/provision for income taxes	0	0	0	0
Equity in earnings of affiliates, net of tax	0	0	0	0
Equity in earnings of subsidiary, net of tax	(57,280,000)	(57,788,000)	(113,255,000)	(172,822,000)
Net income from continuing operations	(57,280,000)	(57,788,000)	(113,255,000)	(172,822,000)
(Loss)/income from discontinued operations, net of tax	0	0	0	0
Gain on sale of discontinued operations, net of tax	0	0	0	0
Net income/(loss)	(57,280,000)	(57,788,000)	(113,255,000)	(172,822,000)
Less: Net loss attributable to noncontrolling interests	0	0	0	0
Net income attributable to CoreLogic	(57,280,000)	(57,788,000)	(113,255,000)	(172,822,000)
Total other comprehensive income/(loss)	26,251,000	(7,644,000)	8,709,000	32,289,000
Less: Comprehensive income attributable to the noncontrolling interests	0	0	0	0
Comprehensive income attributable to CoreLogic	(31,029,000)	(65,432,000)	(104,546,000)	(140,533,000)
Total [Member]
Operating Revenue		356,581,000	1,059,528,000	1,075,879,000
Intercompany Revenue		0	0	0
Cost of services (excluding depreciation and amortization shown below)		177,898,000	564,916,000	539,796,000
Selling, General and Administrative Expense		87,886,000	255,488,000	276,257,000
Depreciation and amortization		29,436,000	100,636,000	96,697,000
Asset Impairment Charges			4,888,000
(Loss)/income from continuing operations		61,361,000	133,600,000	161,408,000
Interest Income (Expense), Net		(11,512,000)	(49,464,000)
Interest Expense Net				(34,870,000)
Gain/(loss) on investment and other, net		7,627,000	2,825,000	9,362,000
(Benefit)/provision for income taxes		19,765,000	23,070,000	50,087,000
Equity in earnings of affiliates, net of tax		5,716,000	10,289,000	23,848,000
Equity in earnings of subsidiary, net of tax		0	0	0
Net income from continuing operations		43,427,000	74,180,000	109,661,000
(Loss)/income from discontinued operations, net of tax		5,332,000	(15,219,000)	17,935,000
Gain on sale of discontinued operations, net of tax	476,000	(5,052,000)	476,000	(6,796,000)
Net income/(loss)		43,707,000	59,437,000	120,800,000
Less: Net loss attributable to noncontrolling interests		45,000	899,000	19,000
Net income attributable to CoreLogic		43,662,000	58,538,000	120,781,000
Total other comprehensive income/(loss)		7,345,000	(6,305,000)	(31,127,000)
Less: Comprehensive income attributable to the noncontrolling interests		45,000	899,000	19,000
Comprehensive income attributable to CoreLogic		$ 51,007,000	$ 52,233,000	$ 89,654,000