Estimated

 

December 31,

 

 

    

Useful Lives

    

2016

    

2015

 

Computer hardware, software and other office equipment

 
2

to
5

years

 

$
5,317

 

$
4,302

 

Furniture, fixtures and leasehold improvements

 
2

to
5

years

 

 
2,441

 

 
958

 

Internal-use software and development costs

 
3

to
5

years

 

 
5,676

 

 
4,992

 

Accumulated depreciation

 

 

 

 

 

 

 
(8,645)

 

 
(7,231)

 

 

 

 

 

 

 

 

$
4,789

 

$
3,021