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SEGMENT AND GEOGRAPHICAL INFORMATION - Segment Assets (Details) - USD ($) $ in Thousands	Jul. 04, 2025	Dec. 27, 2024	Jun. 28, 2024
Assets:
Segment assets	$ 484,851	$ 464,863	$ 421,289
Operating Segments | Energy
Assets:
Segment assets	385,271		328,031
Operating Segments | Engineering and Consulting
Assets:
Segment assets	41,207		30,989
Corporate, Non-Segment
Assets:
Segment assets	81,503		85,399
Intersegment Eliminations
Assets:
Segment assets	$ (23,130)		$ (23,130)

X

- Definition

Amount of asset recognized for present right to economic benefit.

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