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Accrued Liabilities
 9 Months Ended
Sep. 30, 2016
Payables and Accruals [Abstract]  
Accrued Liabilities
ACCRUED LIABILITIES
Accrued liabilities consist of the following:
 
As of
September 30, 2016
 
As of
December 31, 2015
Accrued compensation and benefits
$
13,041

 
$
12,798

Accrued warranties
2,676

 
2,309

Professional and legal fees
1,848

 
2,014

Taxes other than income
1,829

 
2,160

Other accrued liabilities
4,931

 
3,293

 
$
24,325

 
$
22,574


Activity related to accrued warranties was as follows:
 
Nine Months Ended
 
September 30, 2016
 
September 26, 2015
Balance, beginning of period
$
2,309

 
$
2,719

Provision for warranty expense
2,292

 
2,394

Fulfillment of warranty obligations
(1,925
)
 
(2,909
)
Balance, end of period
$
2,676

 
$
2,204