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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 28, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Performance-Based Restricted Stock Units Activity

PRU activity for the year ended December 28, 2020 was as follows:

		Shares				Weighted Average Fair Value
		(In thousands)
Outstanding shares as of December 30, 2019			216			$	12.14
Granted			303				10.57
Vested			(137	)			12.82
Forfeited / cancelled			(22	)			10.89
Change in units due to annual performance achievement			(71	)			12.12
Outstanding shares as of December 28, 2020			289			$	10.27

Assumptions Used in Determining Fair Value

For the years ended December 28, 2020, December 30, 2019 and December 31, 2018, the following assumptions were used in determining the fair value:

		For the Year Ended
		December 28, 2020 (1)				December 30, 2019 (2)				December 31, 2018 (3)
Weighted-average fair value		$	10.57			$	10.17			$	19.59
Risk-free interest rate			0.18	%			2.18	%			2.14	%
Dividend yield			—				—				—
Expected volatility			49	%			38	%			40	%

(1) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2018, the second year of the three-year performance period applicable to PRUs granted in 2019 and the first year of the three-year performance period applicable to PRUs granted in 2020.

(2) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017, the second year of the three-year performance period applicable to PRUs granted in 2018 and the first year of the three-year performance period applicable to PRUs granted in 2019.

(3) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, the second year of the three-year performance period applicable to PRUs granted in 2017 and the first year of the three-year performance period applicable to PRUs granted in 2018.

Restricted Stock Units Activity

RSU activity for the year ended December 28, 2020 was as follows:

		Shares				Weighted Average Grant-Date Fair Value
		(In thousands)
Non-vested RSUs outstanding as of December 30, 2019			2,527			$	11.91
Granted			1,474				11.20
Vested			(1,141	)			11.48
Forfeited			(294	)			11.42
Non-vested RSUs outstanding as of December 28, 2020			2,566			$	11.20
Vested and expected to vest through 2023 as of December 28, 2020			3,121			$	11.15

Amounts Recognized in Consolidated Financial Statements of Operations with Respect to Stock Based Compensation Plan

For the years ended December 28, 2020, December 30, 2019 and December 31, 2018, the amounts recognized in the consolidated statements of operations with respect to the stock-based compensation plan are as follows:

		For the Year Ended
		December 28,				December 30,				December 31,
		2020				2019				2018
		(In thousands)
Cost of goods sold		$	3,889			$	3,148			$	2,893
Selling and marketing			1,919				1,887				1,902
General and administrative			10,083				11,568				15,676
Research and development			182				213				210
Stock-based compensation expense recognized		$	16,073			$	16,816			$	20,681

Summary of Unrecognized Compensation Costs

The following is a summary of total unrecognized compensation costs as of December 28, 2020:

		Unrecognized Stock-Based Compensation Cost				Remaining Weighted Average Recognition Period
		(In thousands)				(In years)
RSU awards		$	20,663				1.4
PRU awards			1,898				1.6
Stock options			131				1.2
		$	22,692

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