Segment Information (Tables) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Operating Revenues	$ 453,543	$ 364,772
Depreciation and Amortization	39,644	35,978
Operating Income (Loss)	57,311	49,265
Income (Loss) from Equity Method Investments	(90)	3,766
Net Income/(Loss) From Continuing Operations	27,538	29,498
Capital Expenditures	18,831	22,641
Assets	3,605,964		$ 3,673,035
Property Intelligence [Member]
Segment Reporting Information [Line Items]
Operating Revenues	241,439	153,393
Depreciation and Amortization	27,926	24,192
Operating Income (Loss)	17,277	19,619
Income (Loss) from Equity Method Investments	48	6,141
Net Income/(Loss) From Continuing Operations	16,687	25,666
Capital Expenditures	11,895	15,025
Assets	2,023,717		2,058,412
Risk Management and Work Flow [Member]
Segment Reporting Information [Line Items]
Operating Revenues	215,019	214,011
Depreciation and Amortization	7,718	8,241
Operating Income (Loss)	52,924	50,965
Income (Loss) from Equity Method Investments	0	0
Net Income/(Loss) From Continuing Operations	52,923	50,943
Capital Expenditures	2,335	3,346
Assets	1,330,014		1,316,785
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Operating Revenues	(5)	18
Depreciation and Amortization	4,000	3,545
Operating Income (Loss)	(12,890)	(21,319)
Income (Loss) from Equity Method Investments	(138)	(2,375)
Net Income/(Loss) From Continuing Operations	(42,072)	(47,111)
Capital Expenditures	4,601	4,270
Assets	5,273,000		5,318,990
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Operating Revenues	(2,910)	(2,650)
Depreciation and Amortization	0	0
Operating Income (Loss)	0	0
Income (Loss) from Equity Method Investments	0	0
Net Income/(Loss) From Continuing Operations	0	0
Capital Expenditures	0	$ 0
Assets	$ (5,020,767)		$ (5,021,152)