Warranties (Tables)

3 Months Ended

Mar. 31, 2017

Product Warranties Disclosures [Abstract]

Change in the Company's warranty reserve

The overall change in the Company’s warranty reserve is reflected on the condensed consolidated balance sheets in accrued expenses and taxes and is detailed as follows:

	Three Months Ended   March 31,
	2017			2016
	(in thousands)
Liability, beginning of period	$	2,439		$	1,415
Provision for warranties issued during the period, net of adjustments	29			415
Adjustments to warranties issued during previous periods	532			5
Warranty claims	(170		)	(122		)
Liability, end of period	$	2,830		$	1,713