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Segment Reporting (Tables)

12 Months Ended

Jan. 03, 2025

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

Segment information is presented for selected data from the statements of income and statements of cash flows for 2024, 2023 and 2022. Segment information for selected data from the balance sheets is presented for the fiscal years ended January 3, 2025 and December 29, 2023. The Company’s CEO, the chief operating decision maker, does not review total assets in her evaluation of segment performance and capital allocation.

Revenues

		Fiscal Years
(In thousands)		2024				2023				2022
Engineering and Other Scientific		$	469,544			$	446,888			$	427,796
Environmental and Health			88,970				89,878				85,497
Total revenues		$	558,514			$	536,766			$	513,293

Compensation and related expenses

		Fiscal Years
(In thousands)		2024				2023				2022
Engineering and Other Scientific		$	223,395			$	215,650			$	195,243
Environmental and Health			47,600				48,619				47,288
Total segment compensation and related expenses			270,995				264,269				242,531
Corporate compensation and related expenses			59,016				55,617				21,704
Total compensation and related expenses		$	330,011			$	319,886			$	264,235

Certain expenses are excluded from the Company’s measure of segment compensation and related expenses. These include the deferred compensation expense/benefit due to changes in value of assets associated with the Company’s deferred compensation plan; stock-based compensation associated with restricted stock unit and stock option awards, and the compensation costs associated with the Company’s human resources, finance, information technology, corporate, and business development groups.

Operating Income

		Fiscal Years
(In thousands)		2024				2023				2022
Engineering and Other Scientific		$	164,883			$	153,918			$	152,679
Environmental and Health			29,995				28,432				27,340
Total segment operating income			194,878				182,350				180,019
Corporate operating expense			(75,321	)			(71,028	)			(39,177	)
Total operating income		$	119,557			$	111,322			$	140,842

Capital Expenditures

		Fiscal Years
(In thousands)		2024				2023				2022
Engineering and Other Scientific		$	3,257			$	3,895			$	4,661
Environmental and Health			77				170				174
Total segment capital expenditures			3,334				4,065				4,835
Corporate capital expenditures			4,043				14,630				7,812
Total capital expenditures		$	7,377			$	18,695			$	12,647

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

		Fiscal Years
(In thousands)		2024				2023				2022
Engineering and Other Scientific		$	6,833			$	6,087			$	4,489
Environmental and Health			206				213				171
Total segment depreciation and amortization			7,039				6,300				4,660
Corporate depreciation and amortization			2,650				2,616				2,419
Total depreciation and amortization		$	9,689			$	8,916			$	7,079

Operations In Different Geographical Areas

Information regarding the Company’s operations in different geographical areas:

Property, Equipment and Leasehold Improvements, net

		Fiscal Years
(In thousands)		2024				2023
United States		$	72,418			$	74,668
Foreign Countries			589				650
Total		$	73,007			$	75,318

Revenues (1)

		Fiscal Years
(In thousands)		2024				2023				2022
United States		$	493,067			$	470,078			$	450,445
Foreign Countries			65,447				66,688				62,848
Total		$	558,514			$	536,766			$	513,293

(1)Geographic revenues are allocated based on the location of the client.

Schedule of Goodwill

Below is a breakdown of goodwill, reported by segment as of January 3, 2025 and December 29, 2023:

(In thousands)		Environmental and Health				Engineering and Other Scientific				Total
Goodwill		$	8,099			$	508			$	8,607

X

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