Warranties (Tables)

9 Months Ended

Sep. 30, 2018

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 other liabilities and is detailed as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(in thousands)
Liability, beginning of period	$	8,388		$	3,006		$	8,838		$	2,439
Provision for warranties issued during the period, net of adjustments	506			120			869			354
Adjustments to warranties issued during previous periods	91			658			(332		)	1,578
Warranty claims	(63		)	(113		)	(453		)	(700		)
Liability, end of period	$	8,922		$	3,671		$	8,922		$	3,671