Balance at January 1, 2015

    

$

566,851

Acquisitions

 

 

2,270

Subsequent adjustment for prior year acquisition

 

 

197

Balance at December 31, 2015

 

$

569,318

Acquisitions

 

 

3,839

Subsequent adjustment for prior year acquisition

 

 

(10)

Balance at December 31, 2016

 

$

573,147