Segment Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Operating Revenues	$ 358,101,000	$ 316,282,000
Depreciation and Amortization	29,491,000	23,037,000
Operating Income (Loss)	45,227,000	26,576,000
Equity in earnings of affiliates, net of tax	9,470,000	6,334,000
Net income/(loss) from continuing operations	28,958,000	22,422,000
Capital Expenditures	20,478,000	16,019,000
Assets	3,060,523,000		3,054,555,000
Number of Reportable Segments	3
Data and Analytics [Member]
Segment Reporting Information [Line Items]
Segment Reporting Intercompany Revenue	4,000,000	4,200,000
Segment Reporting Intercompany Expense	1,600,000	3,300,000
Operating Revenues	141,135,000	117,361,000
Depreciation and Amortization	17,408,000	11,735,000
Operating Income (Loss)	22,123,000	17,005,000
Equity in earnings of affiliates, net of tax	644,000	1,213,000
Net income/(loss) from continuing operations	22,469,000	18,798,000
Capital Expenditures	13,794,000	8,868,000
Assets	1,248,101,000		1,248,436,000
Mortgage Origination Services [Member]
Segment Reporting Information [Line Items]
Segment Reporting Intercompany Revenue	700,000	1,100,000
Segment Reporting Intercompany Expense	4,000,000	10,300,000
Operating Revenues	147,685,000	121,412,000
Depreciation and Amortization	7,418,000	5,138,000
Operating Income (Loss)	32,417,000	17,564,000
Equity in earnings of affiliates, net of tax	14,856,000	9,294,000
Net income/(loss) from continuing operations	46,975,000	52,602,000
Capital Expenditures	4,557,000	2,180,000
Assets	1,028,061,000		1,039,069,000
Default Services [Member]
Segment Reporting Information [Line Items]
Segment Reporting Intercompany Revenue	600,000	100,000
Segment Reporting Intercompany Expense	100,000	4,400,000
Operating Revenues	74,984,000	83,064,000
Depreciation and Amortization	795,000	1,317,000
Operating Income (Loss)	10,418,000	14,647,000
Equity in earnings of affiliates, net of tax	0	(18,000)
Net income/(loss) from continuing operations	10,492,000	14,156,000
Capital Expenditures	821,000	609,000
Assets	222,942,000		226,034,000
Corporate Elimination [Member]
Segment Reporting Information [Line Items]
Operating Revenues	(5,703,000)	(5,555,000)
Depreciation and Amortization	3,870,000	4,847,000
Operating Income (Loss)	(19,731,000)	(22,640,000)
Equity in earnings of affiliates, net of tax	(6,030,000)	(4,155,000)
Net income/(loss) from continuing operations	(50,978,000)	(63,134,000)
Capital Expenditures	1,306,000	4,362,000
Assets	$ 561,419,000		$ 541,016,000