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Share-Based Payments - Additional Information (Detail) - USD ($)		12 Months Ended
	Oct. 07, 2020	Jan. 02, 2021	Dec. 28, 2019	Dec. 31, 2018	Dec. 29, 2018	May 20, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares unissued		33,470
Fair value of share vested		$ 5,300,000	$ 6,200,000	$ 4,800,000
Tax deductions related to the exercise of stock option and vesting of restricted stock		$ 5,900,000	$ 7,200,000	$ 5,600,000
Stock purchase plan		300,000
Annual bonus for common stock, cash value percentage		120.00%
Share based payment share restriction period		24 months
Share based payment authorized issuance of additional shares to be granted					45,000
Shares issued		8,087	3,443
Purchase price of common stock		95.00%
Stock warrant, outstanding and nonvested		4,349,817
Unrecognized cost related to non-vested warrants		$ 22,600,000
Non-vested warrants expensed as vesting conditions are satisfied over the remaining term		6 years 9 months 18 days
Warrants, vested		1,087,455
Warrants, exercisable		1,087,455
Warrants, intrinsic value		$ 0
Commercial Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrant shares vested upon signing contractual term	7 years
Estimated weighted average term	3 years 7 months 6 days
NV Investment Holdings [Member] \| Commercial Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrant to acquire number of securities, common stock shares	5,437,272
Exercise price	$ 17.7257
Warrants commercial supply agreement	$ 200,000,000
Right to purchase warrant, expiration date	Oct. 07, 2027
NV Investment Holdings [Member] \| Commercial Agreement [Member] \| Warrants One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of warrants, outstanding and issuable shares	2.50%
Warrant to purchase number of securities, common stock shares vested	1,087,455
Warrants grant date fair value per share	$ 5.51
NV Investment Holdings [Member] \| Commercial Agreement [Member] \| Warrants Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of warrants, outstanding and issuable shares	10.00%
Warrants grant date fair value per share	$ 5.33
Stock warrant, outstanding and nonvested	4,349,817
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option award period		4 years
Unrecognized compensation cost		$ 5,700,000
Unrecognized compensation cost, weighted average period of recognition		2 years 6 months
Restricted Stock Awards [Member] \| Board of Directors Chairman [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option award period		1 year
2020 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares unissued						1,635,000
2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares unissued		2,205,034
Shares available for Grant under the Plan						736,578
Associate Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock purchase plan		200,000
Shares issued under associate stock purchase plan		161,674