Equity - Schedule of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Class of Stock [Line Items]
Beginning balance	$ 120,848	$ 125,815	$ 123,452	$ 134,015
Common stock issued under employee plans	3	1,178	804	2,211
Shares withheld for net share settlement of RSUs	(289)	(160)	(1,563)	(295)
Equity-based compensation expense	1,495	1,525	3,076	489
Net loss	(4,878)	(2,818)	(8,769)	(10,673)
Other comprehensive loss	(176)	(380)	3	(587)
Ending balance	117,003	125,160	117,003	125,160
Common Stock and Additional Paid-in Capital
Class of Stock [Line Items]
Beginning balance	207,489	198,960	206,381	199,098
Common stock issued under employee plans	3	1,178	804	2,211
Shares withheld for net share settlement of RSUs	(289)	(160)	(1,563)	(295)
Equity-based compensation expense	1,495	1,525	3,076	489
Ending balance	208,698	201,503	208,698	201,503
Treasury Stock
Class of Stock [Line Items]
Beginning balance	(29,551)	(29,551)	(29,551)	(29,551)
Ending balance	(29,551)	(29,551)	(29,551)	(29,551)
Accumulated Other Comprehensive Income
Class of Stock [Line Items]
Beginning balance	(14)	371	(193)	578
Other comprehensive loss	(176)	(380)	3	(587)
Ending balance	(190)	(9)	(190)	(9)
Accumulated Deficit
Class of Stock [Line Items]
Beginning balance	(57,076)	(43,965)	(53,185)	(36,110)
Net loss	(4,878)	(2,818)	(8,769)	(10,673)
Ending balance	$ (61,954)	$ (46,783)	$ (61,954)	$ (46,783)