Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2016

Accrued Liabilities

Accrued liabilities consist of the following:

	As of		As of
	March 31,		December 31,
	2016		2015
Accrued compensation and benefits	$	10,247	$	12,798
Accrued warranties		2,291		2,309
Professional and legal fees		1,170		2,014
Other accrued liabilities		5,137		5,453
	$	18,845	$	22,574

Activity Related to Accrued Warranties

Activity related to accrued warranties was as follows:

	Three Months Ended
	March 31, 2016			March 28, 2015
Balance, beginning of period	$	2,309		$	2,719
Provision for warranty expense		462			755
Fulfillment of warranty obligations		(480	)		(1,272	)
Balance, end of period	$	2,291		$	2,202