Product Warranty

3 Months Ended

Mar. 31, 2018

Product Warranties Disclosures [Abstract]

The Company’s products carry standard limited warranties that range from one to two years and vary by product. The warranty period begins on the date of retail purchase or lease by the original purchaser. The Company accrues estimated product warranty costs at the time of sale and any additional amounts are recorded when such costs are probable and can be reasonably estimated. Factors that affect the Company’s warranty liability include the number of units sold or leased, historical and anticipated rates of warranty repairs and the cost per repair. Warranty and related costs are reflected within sales, marketing and support in the accompanying consolidated statements of operations. As of March 31, 2018 and December 31, 2017, the Company had accrued product warranty costs of $2,027 and $2,074, respectively.

The following table summarizes product warranty activity during 2018 and 2017:



	Three Months Ended
	March 31,
	2018			2017
Beginning balance	$	2,074		$	2,280
Charges to expense	741			237
Costs incurred	(788		)	(122		)
Ending balance	$	2,027		$	2,395