Other Current Liabilities

6 Months Ended

Jun. 30, 2023

Accrued Liabilities, Current [Abstract]

Components of other current liabilities were as follows (in thousands):


	June 30, 2023		December 30, 2022
Accrued self-insurance retentions	$	9,203	$	9,338
Accrued warranty and service liabilities	15,413		14,674
Accrued trade promotions	11,434		13,799
Payable for employee stock purchases	7,515		16,497
Customer advances and deferred revenue	58,226		50,747
Income taxes payable	19,369		15,987
Tax payable, other	9,337		9,614
Right of return refund liability	18,257		18,449
Operating lease liabilities, current	9,126		9,555

Other	30,977		32,133
Total	$	188,857	$	190,793

A liability is established for estimated future warranty and service claims that relate to current and prior period sales. The Company estimates warranty costs based on historical claim experience and other factors, including evaluating specific product warranty issues. Following is a summary of activity in accrued warranty and service liabilities (in thousands):


Balance, December 30, 2022	$	14,674

Charged to expense	5,229
Margin on parts sales reversed	2,179
Reductions for claims settled	(6,669)
Balance, June 30, 2023	$	15,413

Customer Advances and Deferred Revenue

Revenue is deferred when cash payments are received or due in advance of performance, including amounts which are refundable. This is also the case for services associated with certain product sales. During the three and six months ended June 30, 2023, we recognized $16.0 million and $36.6 million, respectively, that was included in deferred revenue at December 30, 2022. During the three and six months ended July 1, 2022, we recognized $18.3 million and $40.8 million, respectively, that was included in deferred revenue at December 31, 2021.