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Segment Reporting (Tables)

3 Months Ended

Apr. 03, 2026

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

Segment information for the three months ended April 3, 2026 and April 4, 2025 follows:

Revenues

		Three Months Ended
(In thousands)		April 3, 2026				April 4, 2025
Engineering and Other Scientific		$	141,412			$	122,135
Environmental and Health			24,891				23,372
Total revenues		$	166,303			$	145,507

Compensation and related expenses

		Three Months Ended
(In thousands)		April 3, 2026				April 4, 2025
Engineering and Other Scientific		$	64,058			$	57,248
Environmental and Health			12,897				12,448
Total segment compensation and related expenses			76,955				69,696
Corporate compensation and related expenses			14,454				6,207
Total compensation and related expenses		$	91,409			$	75,903

Operating Income

		Three Months Ended
(In thousands)		April 3, 2026				April 4, 2025
Engineering and Other Scientific		$	50,415			$	45,113
Environmental and Health			8,385				8,698
Total segment operating income			58,800				53,811
Corporate operating expense			(17,421	)			(9,379	)
Total operating income		$	41,379			$	44,432

Certain operating expenses are excluded from the Company’s measure of segment operating income. These expenses include costs associated with its human resources, finance, information technology, and business

development groups; the deferred compensation expense/benefit due to the change in value of assets associated with its deferred compensation plan; stock-based compensation associated with restricted stock unit and stock option awards; and the change in its allowance for contract losses and doubtful accounts.

Capital Expenditures

		Three Months Ended
(In thousands)		April 3, 2026				April 4, 2025
Engineering and Other Scientific		$	632			$	475
Environmental and Health			39				62
Total segment capital expenditures			671				537
Corporate capital expenditures			1,738				715
Total capital expenditures		$	2,409			$	1,252

Certain capital expenditures associated with the Company’s corporate cost centers and the related depreciation are excluded from the Company’s segment information.

Depreciation and Amortization

		Three Months Ended
(In thousands)		April 3, 2026				April 4, 2025
Engineering and Other Scientific		$	1,849			$	1,826
Environmental and Health			45				47
Total segment depreciation and amortization			1,894				1,873
Corporate depreciation and amortization			621				619
Total depreciation and amortization		$	2,515			$	2,492

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-25

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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X

- References

No definition available.

+ Details

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