Capitalized Data and Database Development Costs, Net (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Capitalized Costs and Database Development [Line Items]
Capitalized data and database costs, net	$ 601,025	$ 571,449
Less accumulated amortization	(273,104)	(243,608)
Capitalized data and database cost, net	327,921	327,841
Property Data [Member]
Capitalized Costs and Database Development [Line Items]
Capitalized data and database costs, net	528,527	498,697
Flood [Member]
Capitalized Costs and Database Development [Line Items]
Capitalized data and database costs, net	55,416	55,416
Eviction Data [Member]
Capitalized Costs and Database Development [Line Items]
Capitalized data and database costs, net	$ 17,082	$ 17,336