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Revenue Recognition (Tables)

6 Months Ended

Jul. 03, 2026

Revenue from Contract with Customer [Abstract]

Summary of Percent of Revenues

The following table discloses the percent of the Company’s revenue generated from time and materials contracts:

		Three Months Ended								Six Months Ended
		July 3, 2026				July 4, 2025				July 3, 2026				July 4, 2025
Engineering & Other Scientific			68	%			65	%			65	%			66	%
Environmental and Health			12	%			15	%			13	%			14	%
Total time and materials revenues			80	%			80	%			78	%			80	%

The following table discloses the percent of the Company’s revenue generated from fixed price contracts:

		Three Months Ended								Six Months Ended
		July 3, 2026				July 4, 2025				July 3, 2026				July 4, 2025
Engineering & Other Scientific			19	%			19	%			21	%			19	%
Environmental and Health			1	%			1	%			1	%			1	%
Total fixed price revenues			20	%			20	%			22	%			20	%

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-5

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- References

No definition available.

+ Details

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