Warranties (Tables)

6 Months Ended

Jun. 30, 2022

Guarantees [Abstract]

Warranty

Changes in the warranty accrual are as follows:

	Three Months Ended				Six Months Ended
	June 30, 2022		June 30, 2021		June 30, 2022		June 30, 2021
Warranty accrual:	(in thousands)
Balance, beginning of period	$	13,707	$	13,525	$	13,769	$	13,522
Payments made	(1,679)		(1,545)		(2,898)		(3,009)
Provisions	2,353		2,028		3,510		3,495
Balance, end of period	$	14,381	$	14,008	$	14,381	$	14,008
Warranty expense:	$	2,353	$	2,028	$	3,510	$	3,495