Guarantor Subsidiaries (Income Statement) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating revenues	$ 364,772,000	$ 326,104,000
Intercompany Revenue	0	0
Cost of services (excluding depreciation and amortization shown below)	185,543,000	187,660,000
Selling, General and Administrative Expense	93,986,000	93,963,000
Depreciation and amortization	35,920,000	29,506,000
Impairment loss	58,000	148,000
(Loss)/income from continuing operations	49,265,000	14,827,000
Interest Income (Expense), Net	(12,377,000)	(15,657,000)
Gain/(loss) on investment and other, net	309,000	(4,351,000)
(Benefit)/provision for income taxes	11,465,000	114,000
Equity in earnings of affiliates, net of tax	3,766,000	2,382,000
Equity in earnings of subsidiary, net of tax	0	0
Net income/(loss) from continuing operations	29,498,000	(2,913,000)
(Loss)/income from discontinued operations, net of tax	(111,000)	385,000
Net income/(loss)	29,387,000	(2,528,000)
Less: Net loss attributable to noncontrolling interests	208,000	264,000
Net income/(loss) attributable to CoreLogic	29,179,000	(2,792,000)
Total other comprehensive income/(loss)	(24,248,000)	12,989,000
Less: Comprehensive income attributable to the noncontrolling interests	208,000	264,000
Comprehensive income attributable to CoreLogic	4,931,000	10,197,000
Parent [Member]
Operating revenues	0	0
Intercompany Revenue	0	0
Cost of services (excluding depreciation and amortization shown below)	0	0
Selling, General and Administrative Expense	18,998,000	18,592,000
Depreciation and amortization	1,253,000	1,147,000
Impairment loss	0	0
(Loss)/income from continuing operations	(20,251,000)	(19,739,000)
Interest Income (Expense), Net	(11,400,000)	(14,987,000)
Gain/(loss) on investment and other, net	309,000	(3,991,000)
(Benefit)/provision for income taxes	(13,346,000)	(13,740,000)
Equity in earnings of affiliates, net of tax	0	0
Equity in earnings of subsidiary, net of tax	47,175,000	22,185,000
Net income/(loss) from continuing operations	29,179,000	(2,792,000)
(Loss)/income from discontinued operations, net of tax	0	0
Net income/(loss)	29,179,000	(2,792,000)
Less: Net loss attributable to noncontrolling interests	0	0
Net income/(loss) attributable to CoreLogic	29,179,000	(2,792,000)
Total other comprehensive income/(loss)	(24,248,000)	12,989,000
Less: Comprehensive income attributable to the noncontrolling interests	0	0
Comprehensive income attributable to CoreLogic	4,931,000	10,197,000
Guarantor Subsidiaries [Member]
Operating revenues	331,904,000	294,761,000
Intercompany Revenue	0	0
Cost of services (excluding depreciation and amortization shown below)	173,720,000	174,247,000
Selling, General and Administrative Expense	68,419,000	66,785,000
Depreciation and amortization	28,590,000	22,003,000
Impairment loss	58,000	148,000
(Loss)/income from continuing operations	61,117,000	31,578,000
Interest Income (Expense), Net	(463,000)	(95,000)
Gain/(loss) on investment and other, net	0	(360,000)
(Benefit)/provision for income taxes	22,159,000	10,735,000
Equity in earnings of affiliates, net of tax	3,855,000	2,382,000
Equity in earnings of subsidiary, net of tax	0	0
Net income/(loss) from continuing operations	42,350,000	22,770,000
(Loss)/income from discontinued operations, net of tax	(111,000)	385,000
Net income/(loss)	42,239,000	23,155,000
Less: Net loss attributable to noncontrolling interests	0	0
Net income/(loss) attributable to CoreLogic	42,239,000	23,155,000
Total other comprehensive income/(loss)	0	0
Less: Comprehensive income attributable to the noncontrolling interests	0	0
Comprehensive income attributable to CoreLogic	42,239,000	23,155,000
Non-Guarantor Subsidiaries [Member]
Operating revenues	32,868,000	31,343,000
Intercompany Revenue	198,000	58,000
Cost of services (excluding depreciation and amortization shown below)	11,841,000	13,327,000
Selling, General and Administrative Expense	6,749,000	8,730,000
Depreciation and amortization	6,077,000	6,356,000
Impairment loss	0	0
(Loss)/income from continuing operations	8,399,000	2,988,000
Interest Income (Expense), Net	(514,000)	(575,000)
Gain/(loss) on investment and other, net	0	0
(Benefit)/provision for income taxes	2,652,000	3,119,000
Equity in earnings of affiliates, net of tax	(89,000)	0
Equity in earnings of subsidiary, net of tax	0	0
Net income/(loss) from continuing operations	5,144,000	(706,000)
(Loss)/income from discontinued operations, net of tax	0	0
Net income/(loss)	5,144,000	(706,000)
Less: Net loss attributable to noncontrolling interests	208,000	264,000
Net income/(loss) attributable to CoreLogic	4,936,000	(970,000)
Total other comprehensive income/(loss)	(21,776,000)	10,502,000
Less: Comprehensive income attributable to the noncontrolling interests	208,000	264,000
Comprehensive income attributable to CoreLogic	(16,840,000)	9,532,000
Consolidation, Eliminations [Member]
Operating revenues	0	0
Intercompany Revenue	(198,000)	(58,000)
Cost of services (excluding depreciation and amortization shown below)	(18,000)	86,000
Selling, General and Administrative Expense	(180,000)	(144,000)
Depreciation and amortization	0	0
Impairment loss	0	0
(Loss)/income from continuing operations	0	0
Interest Income (Expense), Net	0	0
Gain/(loss) on investment and other, net	0	0
(Benefit)/provision for income taxes	0	0
Equity in earnings of affiliates, net of tax	0	0
Equity in earnings of subsidiary, net of tax	(47,175,000)	(22,185,000)
Net income/(loss) from continuing operations	(47,175,000)	(22,185,000)
(Loss)/income from discontinued operations, net of tax	0	0
Net income/(loss)	(47,175,000)	(22,185,000)
Less: Net loss attributable to noncontrolling interests	0	0
Net income/(loss) attributable to CoreLogic	(47,175,000)	(22,185,000)
Total other comprehensive income/(loss)	21,776,000	(10,502,000)
Less: Comprehensive income attributable to the noncontrolling interests	0	0
Comprehensive income attributable to CoreLogic	$ (25,399,000)	$ (32,687,000)