The contractual warranty period of the Company's products generally ranges from three months to two years with certain warranties extending for longer periods. Estimated expenses related to product warranties are accrued at the time products are sold to customers and are recorded in accruals and other current liabilities on the unaudited condensed consolidated balance sheets. Estimates are established using historical information as to the nature, frequency and average costs of warranty claims.

Changes in the carrying amount of accrued product warranty costs for each of the year to date periods ended June 30, 2022 and 2021 were as follows:


	June 30, 2022			June 30, 2021
Balance at beginning of period	$	8.3		$	9.2
Accrued current period warranty expense		1.7			1.7
Payments and adjustments		(1.4	)		(0.8	)
Balance at end of period	$	8.6		$	10.1