Product Warranty (Tables)

3 Months Ended

Mar. 31, 2022

Product Warranty

Schedule of product warranty liability

	Three months ended
	March 31,
	2022		2021
	(in thousands)
Balance at January 1 (beginning of year)	$	6,924	$	4,612
Warranties issued during the period		2,140		1,288
Settlements made during the period		(1,430)		(968)
Changes in estimate of liability for pre-existing warranties during the period		375		(192)
Balance at March 31 (end of period)	$	8,009	$	4,740
Amount classified as current	$	7,203	$	4,181
Amount classified as long-term		806		559
Total warranty liability	$	8,009	$	4,740