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SUPPLEMENTAL FINANCIAL STATEMENT DATA - Equipment and Leasehold Improvements, Net - Tabular Disclosure (Details) - USD ($) $ in Thousands	Sep. 27, 2024	Dec. 29, 2023
Equipment and Leasehold Improvements
Equipment under finance leases	$ 6,969	$ 6,139
Equipment and leasehold improvements, gross	68,642	61,867
Accumulated depreciation and amortization	(39,687)	(34,770)
Equipment and leasehold improvements, net	28,955	27,097
Furniture and Fixtures
Equipment and Leasehold Improvements
Equipment and leasehold improvements	4,501	4,379
Computer Hardware and Software
Equipment and Leasehold Improvements
Equipment and leasehold improvements	50,070	44,594
Leasehold Improvements
Equipment and Leasehold Improvements
Equipment and leasehold improvements	3,551	3,382
Automobiles Trucks and Field Equipment
Equipment and Leasehold Improvements
Equipment and leasehold improvements	$ 3,551	$ 3,373

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Amount, before accumulated amortization, of right-of-use asset from finance lease.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

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