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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2022	Mar. 31, 2021
Cash paid for:
Income taxes, net of refunds	$ 936	$ 388
Interest, net of amounts capitalized	57	70
Non-cash investing activities:
Accrued purchases of property and equipment	20,080	12,949
Capitalized equity-based compensation	25	9
Non-cash financing activities:
Revolving Credit Facility amendment-related accrual	0	112
Convertible Notes issuance-related accrual	0	312
Establishment of liabilities under tax receivable agreement	$ 228	$ 1,094

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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