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SEGMENT AND GEOGRAPHICAL INFORMATION - Segment Assets (Details) - USD ($) $ in Thousands	Oct. 03, 2025	Dec. 27, 2024	Sep. 27, 2024
Assets:
Segment assets	$ 507,925	$ 464,863	$ 447,253
Operating Segments | Energy
Assets:
Segment assets	428,984		348,617
Operating Segments | Engineering and Consulting
Assets:
Segment assets	40,979		29,523
Corporate, Non-Segment
Assets:
Segment assets	61,092		92,243
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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