Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

Commitments And Contingencies [Abstract]

Schedule of Changes in Warranty Reserves

Changes in the Company’s warranty reserves are as follows:

	Six Months Ended June 30,
	2018			2017
Balance, beginning of the period	$	2,427		$	1,788
Accruals		1,930			1,659
Usage		(1,692	)		(1,311	)
Balance, end of the period	$	2,665		$	2,136