Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018
Components of accrued expenses
Accrued warranty	$ 13,856	$ 11,964
Accrued other compensation	13,331	10,518
Accrued bonus	12,541	21,226
Accrued sales and other indirect taxes payable	12,440	11,397
Accrued direct fulfillment costs	10,582	5,372
Current portion of operating lease liabilities	6,843	0
Accrued federal and state income taxes	3,378	1,936
Accrued other	8,797	8,846
Accrued expenses, total	$ 81,768	$ 71,259