INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 03, 2021	Jan. 02, 2022
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 32,530	$ 43,523
Change in valuation allowance		11,000
Deferred tax expense		5,200
Charge to additional paid in capital related to warrant transactions		5,800
Long-term accrued expenses and other	13,600	38,200
Kennedy
Operating Loss Carryforwards [Line Items]
Long-term accrued expenses and other		24,600
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	77,700	96,100
Net operating loss carryforwards set to expire	41,000
Tax credit carryforwards	0	200
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	44,200	75,900
Tax credit carryforwards	$ 100	$ 0