The changes in goodwill by reportable segment are outlined below (in thousands):
 
Alarm.com
 
Other
 
Total
Balance as of January 1, 2015
$
21,374

 
$
—

 
$
21,374

Goodwill acquired
3,349

 
—

 
3,349

Balance as of December 31, 2015
24,723

 
—

 
24,723

Goodwill acquired
—

 
—

 
—

Balance as of December 31, 2016
$
24,723

 
$
—

 
$
24,723