Segment Reporting (Tables)

12 Months Ended

Dec. 29, 2023

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 2023, 2022 and 2021. Segment information for selected data from the balance sheets is presented for the fiscal years ended December 29, 2023 and December 30, 2022. 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)	2023		2022		2021
Engineering and Other Scientific	$	446,888	$	427,796	$	380,909
Environmental and Health		89,878		85,497		85,360
Total revenues	$	536,766	$	513,293	$	466,269

Operating Income

	Fiscal Years
(In thousands)	2023			2022			2021
Engineering and Other Scientific	$	153,918		$	152,679		$	140,400
Environmental and Health		28,432			27,340			27,952
Total segment operating income		182,350			180,019			168,352
Corporate operating expense		(71,028	)		(39,177	)		(59,425	)
Total operating income	$	111,322		$	140,842		$	108,927

Capital Expenditures

	Fiscal Years
(In thousands)	2023		2022		2021
Engineering and Other Scientific	$	3,895	$	4,661	$	2,792
Environmental and Health		170		174		160
Total segment capital expenditures		4,065		4,835		2,952
Corporate capital expenditures		14,630		7,812		3,685
Total capital expenditures	$	18,695	$	12,647	$	6,637

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)	2023		2022		2021
Engineering and Other Scientific	$	6,087	$	4,489	$	4,031
Environmental and Health		213		171		193
Total segment depreciation and amortization		6,300		4,660		4,224
Corporate depreciation and amortization		2,616		2,419		2,263
Total depreciation and amortization	$	8,916	$	7,079	$	6,487

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)	2023		2022
United States	$	74,668	$	64,742
Foreign Countries		650		797
Total	$	75,318	$	65,539

Revenues (1)

	Fiscal Years
(In thousands)	2023		2022		2021
United States	$	470,078	$	450,445	$	397,001
Foreign Countries		66,688		62,848		69,268
Total	$	536,766	$	513,293	$	466,269

(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 December 29, 2023 and December 30, 2022:

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