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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2016
Goodwill  
Summary of goodwill

Goodwill consists of the following (in thousands):

 

 

 

 

 

 

 

 

 

 

 

As of December 31,

 

 

    

2016

    

2015

 

Beginning balance

 

$
56,342

 

$
28,454

 

Additions associated with acquisitions

 

 
131,842

 

 
27,888

 

Goodwill

 

$
188,184

 

$
56,342