Revenue Recognition (Tables)

6 Months Ended

Jul. 01, 2022

Revenue Recognition [Abstract]

Summary of Percent of Revenues

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

	Three Months Ended						Six Months Ended
	July 1, 2022			July 2, 2021			July 1, 2022			July 2, 2021
Engineering & Other Scientific		64	%		62	%		63	%		61	%
Environmental and Health		15	%		17	%		16	%		18	%
Total time and materials revenues		79	%		79	%		79	%		79	%

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

	Three Months Ended						Six Months Ended
	July 1, 2022			July 2, 2021			July 1, 2022			July 2, 2021
Engineering & Other Scientific		20	%		20	%		20	%		20	%
Environmental and Health		1	%		1	%		1	%		1	%
Total fixed price revenues		21	%		21	%		21	%		21	%