Stockholders' Equity (Tables)

12 Months Ended

Dec. 30, 2022

Stockholders Equity Note [Abstract]

Schedule of Share-based Compensation, Fair Value of Stock-Based Compensation Granted

The following table represents the fair value of stock-based compensation granted during the year ended 2022 (in thousands):

	Fair Value
Stock options	$	17,428
RSUs		8,929
Performance stock units		8,421
Restricted stock		270
Total stock-based compensation expense	$	35,048

Schedule of Compensation Cost

The Company recorded stock-based compensation expense by award as follows (in thousands):

	Years Ended
	2022		2021		2020
Employee stock option	$	10,403	$	10,373	$	9,577
Restricted stock		686		616		428
RSUs		4,512		2,667		1,732
PSUs		3,525		371		147
Nonemployee stock options		1,245		578		262
Total stock-based compensation expense	$	20,371	$	14,605	$	12,146

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The Company recorded stock-based compensation expense in the following categories (in thousands):

	Years Ended
	2022		2021		2020
Cost of sales	$	501	$	215	$	112
General and administrative		9,402		6,495		4,925
Selling and marketing		4,795		3,454		3,471
Research and development		5,673		4,441		3,638
Total stock-based compensation expense, net		20,371		14,605		12,146
Amounts capitalized as part of inventory		1,881		1,295		1,129
Total stock-based compensation expense, gross	$	22,252	$	15,900	$	13,275

Schedule of Unrecognized Compensation Cost, Non-Vested Stock-Based Compensation Arrangements

As of December 30, 2022, total unrecognized compensation cost related to non-vested stock-based compensation arrangements granted under the Plan were as follows (in thousands):

	2022
Stock options	$	17,140
Restricted stock, RSUs and PSUs		13,638
Total unrecognized stock-based compensation cost	$	30,778

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The risk-free rate is based on the U.S. Treasury yield curve corresponding to the expected term at the time of the grant.

	Years Ended
	2022			2021			2020
Expected dividend yield		0	%		0	%		0	%
Expected volatility		54	%		53	%		53	%
Risk-free interest rate		2.09	%		0.84	%		0.53	%
Expected term (in years)		5.10			5.38			5.72

Schedule of Share-based Compensation, Stock Options, Activity

A summary of option activity under the Plan for the year ended December 30, 2022 was as follows:

	Shares (in 000’s)			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (in 000’s)
Outstanding at December 31, 2021		2,435		$	29.81
Granted		488			73.51
Exercised		(427	)		19.71
Forfeited or expired		(27	)		82.29
Outstanding at December 30, 2022		2,469		$	39.63		5.03	$	45,104
Exercisable at December 30, 2022		1,836		$	27.97		4.07	$	44,137

Share-based Compensation, Performance Shares Award Unvested Activity

A summary of unvested options activity under the Plan for the year ended December 30, 2022 was as follows:

	Shares (in 000’s)			Weighted-Average Grant-Date Fair Value
Unvested at December 31, 2021		572		$	28.63
Granted		488			35.68
Forfeited or expired		(27	)		39.27
Vested		(400	)		25.72
Unvested at December 30, 2022		633		$	35.37

Summary of Weighted Average Grant Date Fair Value of Options Granted and Total intrinsic Value of options Exercised

The weighted average grant date fair value of options granted and the total intrinsic value of options exercised were as follows:

	Years Ended
	2022		2021		2020
Weighted-average grant-date fair value	$	35.68	$	45.08	$	13.85
Intrinsic value of options (in thousands)	$	25,000	$	127,024	$	59,771

Schedule of Share-based Compensation, Restricted Stock, RSU and PSU Activity

A summary of restricted stock, RSU and PSU activity under the Plan for the year ended December 30, 2022 was as follows:

	Restricted Stock					Restricted Stock Units					Performance Stock Units
	Units (in 000’s)			Weighted- Average Grant- Date Fair Value		Units (in 000’s)			Weighted- Average Grant- Date Fair Value		Units (in 000’s)			Weighted- Average Grant- Date Fair Value
Outstanding at December 31, 2021		3		$	154.96		131		$	66.94		10		$	51.42
Granted		6			62.10		118			75.62		113			74.80
Vested		(5	)		154.96		(57	)		63.73		(5	)		51.42
Outstanding at December 30, 2022		4		$	62.10		192		$	73.25		118		$	73.78