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Capitalized Data and Database Development Costs, Net
12 Months Ended
Dec. 31, 2015
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, 2015 and 2014 consists of the following:

(in thousands)
2015
 
2014
Property data
$
498,697

 
$
477,221

Flood data
55,416

 
55,416

Eviction data
17,336

 
18,068

 
571,449

 
550,705

Less accumulated amortization
(243,608
)
 
(217,440
)
Capitalized data and database costs, net
$
327,841

 
$
333,265



Amortization expense for capitalized data and database development costs was approximately $33.2 million, $32.6 million and $30.1 million for the years ended December 31, 2015, 2014 and 2013, respectively.