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PROPERTY AND EQUIPMENT, NET
 12 Months Ended
Dec. 31, 2016
Property, Plant and Equipment [Abstract]  
PROPERTY AND EQUIPMENT, NET
PROPERTY AND EQUIPMENT, NET
 
As of December 31, 2016 and 2015, property and equipment consists of the following (in thousands):
 
 
Estimated Useful
Life (Years)
 
December 31,
 
 
2016
 
2015
Equipment and machinery
7-10
 
$
38,486

 
$
34,694

Furniture and fixtures
5–7
 
2,635

 
3,556

Computer equipment
3–5
 
2,913

 
2,699

Capitalized software costs
3–5
 
11,324

 
11,041

Leasehold improvements
4–10
 
9,477

 
8,643

Construction in process
 
 
6,275

 
2,994

Total
 
 
71,110

 
63,627

Less accumulated depreciation and amortization
 
 
(39,670
)
 
(31,509
)
Property and equipment, net
 
 
$
31,440

 
$
32,118


 
Depreciation expense for property and equipment was $9.9 million, $10.0 million and $8.1 million, in 2016, 2015 and 2014, respectively.
 
As of December 31, 2016 and 2015, unamortized capitalized software costs were $1.9 million and $3.3 million, respectively.