The following table provides the changes in the Company’s product warranties:


	Three months ended						Six months ended
($ in thousands)	February 28, 2022			February 28, 2021			February 28, 2022			February 28, 2021
Product warranty accrual balance, beginning of period	$	12,379		$	10,858		$	12,736		$	10,765
Liabilities accrued for warranties during the period		1,825			2,247			4,219			3,981
Warranty claims paid during the period		(1,250	)		(1,378	)		(4,001	)		(3,019	)
Changes in estimates		(136	)		59			(136	)		59
Product warranty accrual balance, end of period	$	12,818		$	11,786		$	12,818		$	11,786