Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consist of the following:

	As of June 30, 2017		As of December 31, 2016
Accrued compensation and benefits	$	14,336	$	13,649
Accrued warranties	2,570		2,594
Professional and legal fees	1,784		1,775
Taxes other than income	3,517		4,026
Other accrued liabilities	3,412		2,528
	$	25,619	$	24,572

Schedule of Activity Related to Accrued Warranties

Activity related to accrued warranties was as follows:

	Six Months Ended
	June 30, 2017			June 30, 2016
Balance, beginning of period	$	2,594		$	2,309
Provision for warranty expense	1,824			1,335
Fulfillment of warranty obligations	(1,848		)	(1,244		)
Balance, end of period	$	2,570		$	2,400