GUARANTEES

The Company’s product warranty accrual reflects management’s best estimate of probable liability under its product warranties. Historical product claims data is used to estimate the cost of product warranties at the time revenue is recognized.

Changes in the product warranty accrual, which is recorded in “Accrued expenses”, for the years ended December 30, 2017 and December 31, 2016, were as follows:



	2017			2016
Balance, beginning of period	$	26,538		$	36,653
Payments made	(26,097		)	(20,355		)
Change in liability for warranties issued during the period	9,787			9,565
Change in liability for pre-existing warranties	9,881			675
Balance, end of period	$	20,109		$	26,538