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Capitalized Data and Database Development Costs, Net
12 Months Ended
Dec. 31, 2016
Research and Development [Abstract]  
Capitalized Data and Database Developement Costs, Net
Capitalized Data and Database Development Costs, Net

Capitalized data and database development costs, net as of December 31, 2016 and 2015 consists of the following:

(in thousands)
2016
 
2015
Property data
$
528,527

 
$
498,697

Flood data
55,416

 
55,416

Eviction data
17,082

 
17,336

 
601,025

 
571,449

Less accumulated amortization
(273,104
)
 
(243,608
)
Capitalized data and database costs, net
$
327,921

 
$
327,841



Amortization expense for capitalized data and database development costs was approximately $34.6 million, $33.2 million and $32.6 million for the years ended December 31, 2016, 2015 and 2014, respectively.